{"content_id":"viep54gqlf","slug":"winter-wind-chill-weather-reading-guide","locale":"en","schema_type":"HowTo","category":"how_to","category_name":"How-to","title":"Winter Wind Chill: Calculation and Checks Before Going Out","summary":"Before going out in winter, check both the current wind chill and the forecast for the time you plan to go out. The Korea Meteorological Administration's formula, this site's display conditions, and the 2026 service closure notice are separate matters.","sponsorship_disclosure":null,"affiliate_disclosure":null,"commerce_disclosure":null,"author":{"name":"Injoys Editorial Team","url":"https://injoys.com/ko/about"},"key_points":["Check the current temperature and wind chill under My Neighborhood in this site's left-hand weather panel.","Use the Compared with Yesterday indicator to check the direction of change from the previous day.","In the 48-hour hourly forecast, check the forecast for when you plan to go out and return home.","Check the latest weather alerts and cold wave impact forecasts for your area on the Korea Meteorological Administration's Weather Nuri.","On cold days, reduce outdoor activities and prepare to keep warm when going out."],"content_markdown":"Before going out in winter, check the feels-like temperature under [My Neighborhood] on this site first. “Compared with Yesterday” shows the change from the previous day. Also check the forecast for when you plan to go out in the 48-Hour Hourly Forecast. Decide how to respond to a cold wave by checking both the latest weather alerts and impact forecasts from the Korea Meteorological Administration.\n\nThe figures and service information in this article are based on records checked on November 11, 2026, and the official documents below.\n\n## What to check before going out\n\nCheck the current feels-like temperature, then the forecast for when you plan to go out. The value shown now does not necessarily describe the weather when you go out later. Matching the location and time can help you avoid confusing different values.\n\n1. Check [My Neighborhood] in the weather panel on the left side of this site. Make sure the displayed location matches where you are going. Read both the current air temperature and the feels-like temperature.\n2. Check “Compared with Yesterday” to see whether conditions have risen or fallen since the previous day. Check whether the comparison is for air temperature or feels-like temperature.\n3. Find your departure time in the 48-Hour Hourly Forecast. Also check the forecast for when you plan to return.\n4. Check the latest alerts for your area on the Korea Meteorological Administration’s Weather Nuri. If a cold wave impact forecast has been issued, also read the health response guidance.\n5. On cold days, limit outdoor activities as much as possible. When going out, keep warm with gloves, a scarf, a hat, and a mask.\n\nThe last step follows the Korea Disease Control and Prevention Agency’s health guidelines for cold waves. Older adults should avoid outdoor activities during cold waves. See the section on cold-related illnesses below for detailed guidance.\n\n## What is feels-like temperature?\n\nFeels-like temperature is a numerical measure of how hot or cold a person feels. The winter calculation uses air temperature and wind speed. Strong winds remove heat from around the skin more quickly. This can make it feel colder even at the same air temperature.\n\nFeels-like temperature is not a measurement of body temperature. The winter formula does not account for an individual’s clothing or health. Use the displayed value as a reference when preparing for cold weather.\n\nThe [Meteorological Data Open Portal guide to feels-like temperature](https://data.kma.go.kr/climate/windChill/selectWindChillChart.do?pgmNo=111) explains the seasonal calculation methods. The summer period is May to September. The winter period is October to April of the following year.\n\n## The winter feels-like temperature formula and wind speed units\n\nThe winter formula calculates the cold produced by air temperature and wind together. The coefficients below match those shown on the Meteorological Data Open Portal. Wind speed must be in km/h.\n\n```text\nFeels-like temperature = 13.12 + 0.6215Ta - 11.37V^0.16 + 0.3965V^0.16Ta\nTa = Air temperature(℃)\nV = 10-minute average wind speed(km/h)\n```\n\nThe two terms containing wind speed can be grouped as follows. This is an algebraic rearrangement of the original formula. It is not a new calculation formula.\n\n```text\nWind speed term = (-11.37 + 0.3965Ta) × V^0.16\n```\n\nAt air temperatures of at most 10℃, the value in parentheses is negative. As wind speed increases, V^0.16 also increases. Therefore, at the same air temperature, stronger winds lower the calculated value. Wind speed and the drop in feels-like temperature do not change in the same proportion.\n\nThe official calculation conditions require a wind speed of at least 1.3m/s. This converts to 4.68km/h. Be careful not to enter a value shown in m/s directly into V.\n\n## How does this site’s display change under different conditions?\n\nThis site displays feels-like temperature according to the season and calculation conditions. In winter, it applies the formula when the air temperature is at most 10℃ and the wind speed is at least 1.3m/s. Both conditions must be met.\n\n| Period and conditions | Feels-like temperature displayed on this site |\n| --- | --- |\n| October to April, air temperature at most 10℃ and wind speed at least 1.3m/s | Calculated using the Korea Meteorological Administration’s winter formula |\n| October to April, air temperature higher than 10℃ | Displayed as the same value as the air temperature |\n| October to April, wind speed lower than 1.3m/s | Displayed as the same value as the air temperature |\n| May to September | Calculated using the summer formula, which accounts for humidity |\n\nIf the air temperature and feels-like temperature are the same, first check the site’s display conditions. Conditions may fall outside those for applying the winter formula. Do not conclude from that display alone that it is not cold.\n\nThis site’s feels-like temperature is a value calculated by the site using the formula. It may differ from the feels-like temperature published by the Korea Meteorological Administration. Check [My Neighborhood] on this site for the current value.\n\n## Comparing observed and forecast values\n\nObserved and forecast feels-like temperatures use different data in their calculations. The Open Portal explains that its calculations are based on observed values. It also notes that these differ from the forecast values in Weather Nuri’s Weather and Life Index.\n\n| Category | Basis of the value | What to check when comparing |\n| --- | --- | --- |\n| Open Portal winter feels-like temperature | Observed values | Check whether it is the daily minimum feels-like temperature |\n| Feels-like temperature in the Weather Nuri Weather and Life Index guide | Forecast values | Check whether the information is specific to a group or environment |\n| This site’s feels-like temperature | A value calculated by the site by applying a formula to input data | Check the location, time, and seasonal display conditions |\n\nThe Open Portal’s winter data gives the daily minimum feels-like temperature. Comparing it directly with a current value means comparing different reference points. When comparing two screens, check the following in order.\n\n1. Check whether you are comparing the same area or observation station.\n2. Check whether the values are for the same time.\n3. Check that you have not mixed current values with daily minimum values.\n4. Check whether the data is observed or forecast.\n\n## Why you should check the current feels-like temperature even when it is warmer than yesterday\n\n“Compared with Yesterday” tells you the direction of change. Check the feels-like temperature separately to see how cold it is now. It may still be cold even if the air temperature has risen since the previous day. You also need to distinguish changes in air temperature from the effects of wind.\n\n| Display item | Question it answers | Information to check alongside it |\n| --- | --- | --- |\n| Current air temperature | What is the air temperature now? | Current feels-like temperature |\n| Feels-like temperature | What is the calculated level of cold? | Location and reference time |\n| Compared with Yesterday | How has it changed since the previous day? | Item being compared and reference time |\n| 48-Hour Hourly Forecast | What weather is expected when you go out? | Forecasts for departure and return times |\n\nCheck the on-screen explanation for the exact comparison time used in “Compared with Yesterday.” The same time on the previous day and the daily minimum are separate reference points. If there is no explanation, do not assume a particular basis for comparison.\n\nWhen deciding whether to go out in the morning, use the forecast for your departure time. It is better not to substitute the current value or daily minimum. Check the updated forecast again before leaving.\n\n## Notices about feels-like temperature services ending in 2026\n\nRead service termination notices together with the name and scope of the service concerned. Weather Nuri and the Open Portal list different end dates. No evidence was found to support treating the two dates as the same date.\n\n| Where the notice appears | Announced end date | Confirmed scope |\n| --- | --- | --- |\n| Weather Nuri Weather and Life Index | May 1, 2026 | Notice that the Feels-Like Temperature Index service is ending |\n| Open Portal Weather and Life Index | May 11, 2026 | Notice that the feels-like temperature service in that menu is ending |\n| Feels-like temperature under the Open Portal’s Climate Statistical Analysis | No end date listed | The winter formula and information on observed data remain available |\n\nThe [Open Portal Weather and Life Index guide](https://data.kma.go.kr/data/lwi/lwiRltmList.do) includes the following wording.\n\n\u003e Feels-like temperature service discontinued (2026.5.11.~)\n\nThe [Weather Nuri Weather and Life Index guide](https://www.weather.go.kr/w/forecast/life/life-weather-index.do) explains feels-like temperatures for different groups and environments. This information may differ from the general feels-like temperature on the main screen. The termination wording alone is not enough to conclude that all feels-like temperature displays are ending.\n\nThe reason for the difference in dates has not been confirmed. It has also not been explicitly confirmed whether the notices apply to all winter feels-like temperature information. To confirm exactly what is covered, check the Korea Meteorological Administration’s notice for the service concerned or contact the agency. Distinguish this site’s own calculated values from those published by the services above.\n\n## How to read the 4 levels of cold wave impact forecasts\n\nCold wave impact forecasts explain expected damage and recommended responses. The risk levels are Attention, Caution, Warning, and Danger. The Korea Meteorological Administration explains that it also considers local vulnerability and exposure to cold.\n\n| Level | Risk level described by the Korea Meteorological Administration |\n| --- | --- |\n| Attention | Slight disruption to daily activities, with some harm expected among vulnerable groups |\n| Caution | Some damage expected in parts of the area |\n| Warning | Significant damage expected in various locations, with impacts lasting for a short period |\n| Danger | Damage expected across most of the area, with extreme impacts in various locations lasting for an extended period |\n\nThe [Korea Meteorological Administration’s forecasting operations guide](https://www.kma.go.kr/kma/biz/forecast03.jsp) lists the conditions for issuing these forecasts. They are issued when at least the Attention level is expected in the health sector. They are issued 1 time a day, at 11:30 on the previous day. Forecasts are issued by weather alert area.\n\n### Are the criteria for each level based on feels-like temperature?\n\nThe Korea Meteorological Administration’s criteria for issuing health forecasts use morning minimum air temperature. They distinguish cases where the air temperature drops sharply. They also separately distinguish cases where low temperatures persist.\n\nThe following table gives the criteria in the attachment to the January 19, 2026 press release. The figures are morning minimum air temperatures, not feels-like temperatures. Read the regional thresholds together with the required duration.\n\n| Level | Areas outside the mountainous areas of Jeju Island | Southern and eastern coasts and the mountainous areas of Jeju Island | Other areas | Duration |\n| --- | --- | --- | --- | --- |\n| Attention | At most -3℃ | At most -5℃ | At most -9℃ | At least 2 days |\n| Caution | At most -5℃ | At most -7℃ | At most -12℃ | At least 2 days |\n| Warning | At most -7℃ | At most -9℃ | At most -15℃ | At least 2 days |\n| Danger | At most -12℃ | At most -14℃ | At most -20℃ | At least 1 day |\n\nThe criteria for a sharp drop in air temperature are as follows. Do not apply the conditions in the table to changes in feels-like temperature. You also cannot determine the level from this site’s “Compared with Yesterday” display alone.\n\n| Level | Criteria for a sharp drop in morning minimum air temperature |\n| --- | --- |\n| Attention | A drop of at least 7℃ from the previous day to at most 3℃ |\n| Caution | A drop of at least 10℃ from the previous day to at most 3℃, and at least 3℃ below normal |\n| Warning | A drop of at least 15℃ from the previous day to at most 3℃, and at least 3℃ below normal |\n| Danger | No separate figure listed in the attachment’s column for sharp-drop criteria |\n\nThe source is Attachment 1 of the [Korea Meteorological Administration press release on strengthening the cold wave impact forecast communication system](https://www.weather.go.kr/kma/news/press_01.jsp?mode=view\u0026num=1194589). When deciding whether to go out, check the latest level issued for your area. Do not treat it as using the same criteria as the colors in the winter feels-like temperature calculation chart.\n\n## Preventing cold-related illnesses and what to do if you have symptoms\n\nCold-related illnesses are illnesses directly caused by cold. Hypothermia is a typical example affecting the whole body. Common examples affecting parts of the body include frostbite and chilblains.\n\nThe [Korea Disease Control and Prevention Agency’s December 31, 2025 guidance](https://www.kdca.go.kr/bbs/kdca/42/309528/artclView.do) emphasizes keeping warm. Drinking alcohol can prevent you from noticing that your body temperature is falling. The agency warns that this can increase the risk of cold-related illnesses. Do not try to cope with the cold by drinking alcohol.\n\nFollow the Korea Disease Control and Prevention Agency’s health guidelines when preparing to go out.\n\n1. Check weather information, including the feels-like temperature, before going out. On cold days, limit outdoor activities as much as possible.\n2. Wear thermal underwear or layers of thin clothing. Keep warm with gloves, a scarf, a hat, and a mask.\n3. If your clothes or shoes get wet, promptly change into dry ones. This action is specified in the Korea Disease Control and Prevention Agency’s health guidelines for cold waves.\n\nOlder adults are less able to maintain their body temperature than adults in general. They should avoid outdoor activities during cold waves. Children and people with underlying medical conditions also need to take extra care in the cold.\n\nPeople with cardiovascular or cerebrovascular disease should avoid sudden exposure to cold. They should also avoid strenuous physical activity. These guidelines come from the [Korea Disease Control and Prevention Agency’s cold wave preparedness guidance](https://www.kdca.go.kr/bbs/kdca/42/215496/artclView.do).\n\nSee a doctor if you have symptoms of a cold-related illness. The Korea Disease Control and Prevention Agency recommends the following actions.\n\n1. Move to a warm place.\n2. Remove wet clothing.\n3. Keep your body warm with blankets or similar items.\n\n## Common mistakes when reading feels-like temperature\n\nRead feels-like temperature together with its calculation conditions and comparison criteria. Even if the numbers look the same, the data may mean different things. In particular, avoid confusing the following.\n\n| Common mistake | What to check |\n| --- | --- |\n| Entering a wind speed of 1.3m/s directly into V in the formula | V is measured in km/h, and 1.3m/s equals 4.68km/h |\n| Concluding that it is not cold because the feels-like temperature and air temperature are the same | This site displays the air temperature when conditions fall outside the winter calculation conditions |\n| Directly comparing the current value with the daily minimum | Check whether the location, time, and data type are the same |\n| Reducing cold-weather preparations because it is warmer than yesterday | Check both the current feels-like temperature and the forecast for when you go out |\n| Estimating the cold wave impact forecast level from the feels-like temperature color | Check the impact forecast issued by the Korea Meteorological Administration for your area |\n| Interpreting a service end date as the date the feels-like temperature formula is abolished | Check the service name and scope stated in the notice |","content_html":"\u003cp\u003eBefore going out in winter, check the feels-like temperature under [My Neighborhood] on this site first. “Compared with Yesterday” shows the change from the previous day. Also check the forecast for when you plan to go out in the 48-Hour Hourly Forecast. Decide how to respond to a cold wave by checking both the latest weather alerts and impact forecasts from the Korea Meteorological Administration.\u003c/p\u003e\n\u003cp\u003eThe figures and service information in this article are based on records checked on November 11, 2026, and the official documents below.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-to-check-before-going-out\" class=\"anchor\" id=\"what-to-check-before-going-out\"\u003e\u003c/a\u003eWhat to check before going out\u003c/h2\u003e\n\u003cp\u003eCheck the current feels-like temperature, then the forecast for when you plan to go out. The value shown now does not necessarily describe the weather when you go out later. Matching the location and time can help you avoid confusing different values.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck [My Neighborhood] in the weather panel on the left side of this site. Make sure the displayed location matches where you are going. Read both the current air temperature and the feels-like temperature.\u003c/li\u003e\n\u003cli\u003eCheck “Compared with Yesterday” to see whether conditions have risen or fallen since the previous day. Check whether the comparison is for air temperature or feels-like temperature.\u003c/li\u003e\n\u003cli\u003eFind your departure time in the 48-Hour Hourly Forecast. Also check the forecast for when you plan to return.\u003c/li\u003e\n\u003cli\u003eCheck the latest alerts for your area on the Korea Meteorological Administration’s Weather Nuri. If a cold wave impact forecast has been issued, also read the health response guidance.\u003c/li\u003e\n\u003cli\u003eOn cold days, limit outdoor activities as much as possible. When going out, keep warm with gloves, a scarf, a hat, and a mask.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eThe last step follows the Korea Disease Control and Prevention Agency’s health guidelines for cold waves. Older adults should avoid outdoor activities during cold waves. See the section on cold-related illnesses below for detailed guidance.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-is-feels-like-temperature\" class=\"anchor\" id=\"what-is-feels-like-temperature\"\u003e\u003c/a\u003eWhat is feels-like temperature?\u003c/h2\u003e\n\u003cp\u003eFeels-like temperature is a numerical measure of how hot or cold a person feels. The winter calculation uses air temperature and wind speed. Strong winds remove heat from around the skin more quickly. This can make it feel colder even at the same air temperature.\u003c/p\u003e\n\u003cp\u003eFeels-like temperature is not a measurement of body temperature. The winter formula does not account for an individual’s clothing or health. Use the displayed value as a reference when preparing for cold weather.\u003c/p\u003e\n\u003cp\u003eThe \u003ca href=\"https://data.kma.go.kr/climate/windChill/selectWindChillChart.do?pgmNo=111\"\u003eMeteorological Data Open Portal guide to feels-like temperature\u003c/a\u003e explains the seasonal calculation methods. The summer period is May to September. The winter period is October to April of the following year.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-winter-feels-like-temperature-formula-and-wind-speed-units\" class=\"anchor\" id=\"the-winter-feels-like-temperature-formula-and-wind-speed-units\"\u003e\u003c/a\u003eThe winter feels-like temperature formula and wind speed units\u003c/h2\u003e\n\u003cp\u003eThe winter formula calculates the cold produced by air temperature and wind together. The coefficients below match those shown on the Meteorological Data Open Portal. Wind speed must be in km/h.\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003e\u003cspan\u003eFeels-like temperature = 13.12 + 0.6215Ta - 11.37V^0.16 + 0.3965V^0.16Ta\n\u003c/span\u003e\u003cspan\u003eTa = Air temperature(℃)\n\u003c/span\u003e\u003cspan\u003eV = 10-minute average wind speed(km/h)\n\u003c/span\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003eThe two terms containing wind speed can be grouped as follows. This is an algebraic rearrangement of the original formula. It is not a new calculation formula.\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003e\u003cspan\u003eWind speed term = (-11.37 + 0.3965Ta) × V^0.16\n\u003c/span\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003eAt air temperatures of at most 10℃, the value in parentheses is negative. As wind speed increases, V^0.16 also increases. Therefore, at the same air temperature, stronger winds lower the calculated value. Wind speed and the drop in feels-like temperature do not change in the same proportion.\u003c/p\u003e\n\u003cp\u003eThe official calculation conditions require a wind speed of at least 1.3m/s. This converts to 4.68km/h. Be careful not to enter a value shown in m/s directly into V.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-does-this-sites-display-change-under-different-conditions\" class=\"anchor\" id=\"how-does-this-sites-display-change-under-different-conditions\"\u003e\u003c/a\u003eHow does this site’s display change under different conditions?\u003c/h2\u003e\n\u003cp\u003eThis site displays feels-like temperature according to the season and calculation conditions. In winter, it applies the formula when the air temperature is at most 10℃ and the wind speed is at least 1.3m/s. Both conditions must be met.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePeriod and conditions\u003c/th\u003e\n\u003cth\u003eFeels-like temperature displayed on this site\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Period and conditions\"\u003eOctober to April, air temperature at most 10℃ and wind speed at least 1.3m/s\u003c/td\u003e\n\u003ctd data-label=\"Feels-like temperature displayed on this site\"\u003eCalculated using the Korea Meteorological Administration’s winter formula\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Period and conditions\"\u003eOctober to April, air temperature higher than 10℃\u003c/td\u003e\n\u003ctd data-label=\"Feels-like temperature displayed on this site\"\u003eDisplayed as the same value as the air temperature\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Period and conditions\"\u003eOctober to April, wind speed lower than 1.3m/s\u003c/td\u003e\n\u003ctd data-label=\"Feels-like temperature displayed on this site\"\u003eDisplayed as the same value as the air temperature\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Period and conditions\"\u003eMay to September\u003c/td\u003e\n\u003ctd data-label=\"Feels-like temperature displayed on this site\"\u003eCalculated using the summer formula, which accounts for humidity\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eIf the air temperature and feels-like temperature are the same, first check the site’s display conditions. Conditions may fall outside those for applying the winter formula. Do not conclude from that display alone that it is not cold.\u003c/p\u003e\n\u003cp\u003eThis site’s feels-like temperature is a value calculated by the site using the formula. It may differ from the feels-like temperature published by the Korea Meteorological Administration. Check [My Neighborhood] on this site for the current value.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#comparing-observed-and-forecast-values\" class=\"anchor\" id=\"comparing-observed-and-forecast-values\"\u003e\u003c/a\u003eComparing observed and forecast values\u003c/h2\u003e\n\u003cp\u003eObserved and forecast feels-like temperatures use different data in their calculations. The Open Portal explains that its calculations are based on observed values. It also notes that these differ from the forecast values in Weather Nuri’s Weather and Life Index.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c/th\u003e\n\u003cth\u003eBasis of the value\u003c/th\u003e\n\u003cth\u003eWhat to check when comparing\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eOpen Portal winter feels-like temperature\u003c/td\u003e\n\u003ctd data-label=\"Basis of the value\"\u003eObserved values\u003c/td\u003e\n\u003ctd data-label=\"What to check when comparing\"\u003eCheck whether it is the daily minimum feels-like temperature\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eFeels-like temperature in the Weather Nuri Weather and Life Index guide\u003c/td\u003e\n\u003ctd data-label=\"Basis of the value\"\u003eForecast values\u003c/td\u003e\n\u003ctd data-label=\"What to check when comparing\"\u003eCheck whether the information is specific to a group or environment\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eThis site’s feels-like temperature\u003c/td\u003e\n\u003ctd data-label=\"Basis of the value\"\u003eA value calculated by the site by applying a formula to input data\u003c/td\u003e\n\u003ctd data-label=\"What to check when comparing\"\u003eCheck the location, time, and seasonal display conditions\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe Open Portal’s winter data gives the daily minimum feels-like temperature. Comparing it directly with a current value means comparing different reference points. When comparing two screens, check the following in order.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck whether you are comparing the same area or observation station.\u003c/li\u003e\n\u003cli\u003eCheck whether the values are for the same time.\u003c/li\u003e\n\u003cli\u003eCheck that you have not mixed current values with daily minimum values.\u003c/li\u003e\n\u003cli\u003eCheck whether the data is observed or forecast.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2\u003e\n\u003ca href=\"#why-you-should-check-the-current-feels-like-temperature-even-when-it-is-warmer-than-yesterday\" class=\"anchor\" id=\"why-you-should-check-the-current-feels-like-temperature-even-when-it-is-warmer-than-yesterday\"\u003e\u003c/a\u003eWhy you should check the current feels-like temperature even when it is warmer than yesterday\u003c/h2\u003e\n\u003cp\u003e“Compared with Yesterday” tells you the direction of change. Check the feels-like temperature separately to see how cold it is now. It may still be cold even if the air temperature has risen since the previous day. You also need to distinguish changes in air temperature from the effects of wind.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay item\u003c/th\u003e\n\u003cth\u003eQuestion it answers\u003c/th\u003e\n\u003cth\u003eInformation to check alongside it\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Display item\"\u003eCurrent air temperature\u003c/td\u003e\n\u003ctd data-label=\"Question it answers\"\u003eWhat is the air temperature now?\u003c/td\u003e\n\u003ctd data-label=\"Information to check alongside it\"\u003eCurrent feels-like temperature\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Display item\"\u003eFeels-like temperature\u003c/td\u003e\n\u003ctd data-label=\"Question it answers\"\u003eWhat is the calculated level of cold?\u003c/td\u003e\n\u003ctd data-label=\"Information to check alongside it\"\u003eLocation and reference time\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Display item\"\u003eCompared with Yesterday\u003c/td\u003e\n\u003ctd data-label=\"Question it answers\"\u003eHow has it changed since the previous day?\u003c/td\u003e\n\u003ctd data-label=\"Information to check alongside it\"\u003eItem being compared and reference time\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Display item\"\u003e48-Hour Hourly Forecast\u003c/td\u003e\n\u003ctd data-label=\"Question it answers\"\u003eWhat weather is expected when you go out?\u003c/td\u003e\n\u003ctd data-label=\"Information to check alongside it\"\u003eForecasts for departure and return times\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eCheck the on-screen explanation for the exact comparison time used in “Compared with Yesterday.” The same time on the previous day and the daily minimum are separate reference points. If there is no explanation, do not assume a particular basis for comparison.\u003c/p\u003e\n\u003cp\u003eWhen deciding whether to go out in the morning, use the forecast for your departure time. It is better not to substitute the current value or daily minimum. Check the updated forecast again before leaving.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#notices-about-feels-like-temperature-services-ending-in-2026\" class=\"anchor\" id=\"notices-about-feels-like-temperature-services-ending-in-2026\"\u003e\u003c/a\u003eNotices about feels-like temperature services ending in 2026\u003c/h2\u003e\n\u003cp\u003eRead service termination notices together with the name and scope of the service concerned. Weather Nuri and the Open Portal list different end dates. No evidence was found to support treating the two dates as the same date.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWhere the notice appears\u003c/th\u003e\n\u003cth\u003eAnnounced end date\u003c/th\u003e\n\u003cth\u003eConfirmed scope\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Where the notice appears\"\u003eWeather Nuri Weather and Life Index\u003c/td\u003e\n\u003ctd data-label=\"Announced end date\"\u003eMay 1, 2026\u003c/td\u003e\n\u003ctd data-label=\"Confirmed scope\"\u003eNotice that the Feels-Like Temperature Index service is ending\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Where the notice appears\"\u003eOpen Portal Weather and Life Index\u003c/td\u003e\n\u003ctd data-label=\"Announced end date\"\u003eMay 11, 2026\u003c/td\u003e\n\u003ctd data-label=\"Confirmed scope\"\u003eNotice that the feels-like temperature service in that menu is ending\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Where the notice appears\"\u003eFeels-like temperature under the Open Portal’s Climate Statistical Analysis\u003c/td\u003e\n\u003ctd data-label=\"Announced end date\"\u003eNo end date listed\u003c/td\u003e\n\u003ctd data-label=\"Confirmed scope\"\u003eThe winter formula and information on observed data remain available\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe \u003ca href=\"https://data.kma.go.kr/data/lwi/lwiRltmList.do\"\u003eOpen Portal Weather and Life Index guide\u003c/a\u003e includes the following wording.\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eFeels-like temperature service discontinued (2026.5.11.~)\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp\u003eThe \u003ca href=\"https://www.weather.go.kr/w/forecast/life/life-weather-index.do\"\u003eWeather Nuri Weather and Life Index guide\u003c/a\u003e explains feels-like temperatures for different groups and environments. This information may differ from the general feels-like temperature on the main screen. The termination wording alone is not enough to conclude that all feels-like temperature displays are ending.\u003c/p\u003e\n\u003cp\u003eThe reason for the difference in dates has not been confirmed. It has also not been explicitly confirmed whether the notices apply to all winter feels-like temperature information. To confirm exactly what is covered, check the Korea Meteorological Administration’s notice for the service concerned or contact the agency. Distinguish this site’s own calculated values from those published by the services above.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-to-read-the-4-levels-of-cold-wave-impact-forecasts\" class=\"anchor\" id=\"how-to-read-the-4-levels-of-cold-wave-impact-forecasts\"\u003e\u003c/a\u003eHow to read the 4 levels of cold wave impact forecasts\u003c/h2\u003e\n\u003cp\u003eCold wave impact forecasts explain expected damage and recommended responses. The risk levels are Attention, Caution, Warning, and Danger. The Korea Meteorological Administration explains that it also considers local vulnerability and exposure to cold.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eLevel\u003c/th\u003e\n\u003cth\u003eRisk level described by the Korea Meteorological Administration\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eAttention\u003c/td\u003e\n\u003ctd data-label=\"Risk level described by the Korea Meteorological Administration\"\u003eSlight disruption to daily activities, with some harm expected among vulnerable groups\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eCaution\u003c/td\u003e\n\u003ctd data-label=\"Risk level described by the Korea Meteorological Administration\"\u003eSome damage expected in parts of the area\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eWarning\u003c/td\u003e\n\u003ctd data-label=\"Risk level described by the Korea Meteorological Administration\"\u003eSignificant damage expected in various locations, with impacts lasting for a short period\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eDanger\u003c/td\u003e\n\u003ctd data-label=\"Risk level described by the Korea Meteorological Administration\"\u003eDamage expected across most of the area, with extreme impacts in various locations lasting for an extended period\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe \u003ca href=\"https://www.kma.go.kr/kma/biz/forecast03.jsp\"\u003eKorea Meteorological Administration’s forecasting operations guide\u003c/a\u003e lists the conditions for issuing these forecasts. They are issued when at least the Attention level is expected in the health sector. They are issued 1 time a day, at 11:30 on the previous day. Forecasts are issued by weather alert area.\u003c/p\u003e\n\u003ch3\u003e\n\u003ca href=\"#are-the-criteria-for-each-level-based-on-feels-like-temperature\" class=\"anchor\" id=\"are-the-criteria-for-each-level-based-on-feels-like-temperature\"\u003e\u003c/a\u003eAre the criteria for each level based on feels-like temperature?\u003c/h3\u003e\n\u003cp\u003eThe Korea Meteorological Administration’s criteria for issuing health forecasts use morning minimum air temperature. They distinguish cases where the air temperature drops sharply. They also separately distinguish cases where low temperatures persist.\u003c/p\u003e\n\u003cp\u003eThe following table gives the criteria in the attachment to the January 19, 2026 press release. The figures are morning minimum air temperatures, not feels-like temperatures. Read the regional thresholds together with the required duration.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eLevel\u003c/th\u003e\n\u003cth\u003eAreas outside the mountainous areas of Jeju Island\u003c/th\u003e\n\u003cth\u003eSouthern and eastern coasts and the mountainous areas of Jeju Island\u003c/th\u003e\n\u003cth\u003eOther areas\u003c/th\u003e\n\u003cth\u003eDuration\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eAttention\u003c/td\u003e\n\u003ctd data-label=\"Areas outside the mountainous areas of Jeju Island\"\u003eAt most -3℃\u003c/td\u003e\n\u003ctd data-label=\"Southern and eastern coasts and the mountainous areas of Jeju Island\"\u003eAt most -5℃\u003c/td\u003e\n\u003ctd data-label=\"Other areas\"\u003eAt most -9℃\u003c/td\u003e\n\u003ctd data-label=\"Duration\"\u003eAt least 2 days\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eCaution\u003c/td\u003e\n\u003ctd data-label=\"Areas outside the mountainous areas of Jeju Island\"\u003eAt most -5℃\u003c/td\u003e\n\u003ctd data-label=\"Southern and eastern coasts and the mountainous areas of Jeju Island\"\u003eAt most -7℃\u003c/td\u003e\n\u003ctd data-label=\"Other areas\"\u003eAt most -12℃\u003c/td\u003e\n\u003ctd data-label=\"Duration\"\u003eAt least 2 days\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eWarning\u003c/td\u003e\n\u003ctd data-label=\"Areas outside the mountainous areas of Jeju Island\"\u003eAt most -7℃\u003c/td\u003e\n\u003ctd data-label=\"Southern and eastern coasts and the mountainous areas of Jeju Island\"\u003eAt most -9℃\u003c/td\u003e\n\u003ctd data-label=\"Other areas\"\u003eAt most -15℃\u003c/td\u003e\n\u003ctd data-label=\"Duration\"\u003eAt least 2 days\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eDanger\u003c/td\u003e\n\u003ctd data-label=\"Areas outside the mountainous areas of Jeju Island\"\u003eAt most -12℃\u003c/td\u003e\n\u003ctd data-label=\"Southern and eastern coasts and the mountainous areas of Jeju Island\"\u003eAt most -14℃\u003c/td\u003e\n\u003ctd data-label=\"Other areas\"\u003eAt most -20℃\u003c/td\u003e\n\u003ctd data-label=\"Duration\"\u003eAt least 1 day\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe criteria for a sharp drop in air temperature are as follows. Do not apply the conditions in the table to changes in feels-like temperature. You also cannot determine the level from this site’s “Compared with Yesterday” display alone.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eLevel\u003c/th\u003e\n\u003cth\u003eCriteria for a sharp drop in morning minimum air temperature\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eAttention\u003c/td\u003e\n\u003ctd data-label=\"Criteria for a sharp drop in morning minimum air temperature\"\u003eA drop of at least 7℃ from the previous day to at most 3℃\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eCaution\u003c/td\u003e\n\u003ctd data-label=\"Criteria for a sharp drop in morning minimum air temperature\"\u003eA drop of at least 10℃ from the previous day to at most 3℃, and at least 3℃ below normal\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eWarning\u003c/td\u003e\n\u003ctd data-label=\"Criteria for a sharp drop in morning minimum air temperature\"\u003eA drop of at least 15℃ from the previous day to at most 3℃, and at least 3℃ below normal\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Level\"\u003eDanger\u003c/td\u003e\n\u003ctd data-label=\"Criteria for a sharp drop in morning minimum air temperature\"\u003eNo separate figure listed in the attachment’s column for sharp-drop criteria\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe source is Attachment 1 of the \u003ca href=\"https://www.weather.go.kr/kma/news/press_01.jsp?mode=view\u0026amp;num=1194589\"\u003eKorea Meteorological Administration press release on strengthening the cold wave impact forecast communication system\u003c/a\u003e. When deciding whether to go out, check the latest level issued for your area. Do not treat it as using the same criteria as the colors in the winter feels-like temperature calculation chart.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#preventing-cold-related-illnesses-and-what-to-do-if-you-have-symptoms\" class=\"anchor\" id=\"preventing-cold-related-illnesses-and-what-to-do-if-you-have-symptoms\"\u003e\u003c/a\u003ePreventing cold-related illnesses and what to do if you have symptoms\u003c/h2\u003e\n\u003cp\u003eCold-related illnesses are illnesses directly caused by cold. Hypothermia is a typical example affecting the whole body. Common examples affecting parts of the body include frostbite and chilblains.\u003c/p\u003e\n\u003cp\u003eThe \u003ca href=\"https://www.kdca.go.kr/bbs/kdca/42/309528/artclView.do\"\u003eKorea Disease Control and Prevention Agency’s December 31, 2025 guidance\u003c/a\u003e emphasizes keeping warm. Drinking alcohol can prevent you from noticing that your body temperature is falling. The agency warns that this can increase the risk of cold-related illnesses. Do not try to cope with the cold by drinking alcohol.\u003c/p\u003e\n\u003cp\u003eFollow the Korea Disease Control and Prevention Agency’s health guidelines when preparing to go out.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck weather information, including the feels-like temperature, before going out. On cold days, limit outdoor activities as much as possible.\u003c/li\u003e\n\u003cli\u003eWear thermal underwear or layers of thin clothing. Keep warm with gloves, a scarf, a hat, and a mask.\u003c/li\u003e\n\u003cli\u003eIf your clothes or shoes get wet, promptly change into dry ones. This action is specified in the Korea Disease Control and Prevention Agency’s health guidelines for cold waves.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eOlder adults are less able to maintain their body temperature than adults in general. They should avoid outdoor activities during cold waves. Children and people with underlying medical conditions also need to take extra care in the cold.\u003c/p\u003e\n\u003cp\u003ePeople with cardiovascular or cerebrovascular disease should avoid sudden exposure to cold. They should also avoid strenuous physical activity. These guidelines come from the \u003ca href=\"https://www.kdca.go.kr/bbs/kdca/42/215496/artclView.do\"\u003eKorea Disease Control and Prevention Agency’s cold wave preparedness guidance\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eSee a doctor if you have symptoms of a cold-related illness. The Korea Disease Control and Prevention Agency recommends the following actions.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eMove to a warm place.\u003c/li\u003e\n\u003cli\u003eRemove wet clothing.\u003c/li\u003e\n\u003cli\u003eKeep your body warm with blankets or similar items.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2\u003e\n\u003ca href=\"#common-mistakes-when-reading-feels-like-temperature\" class=\"anchor\" id=\"common-mistakes-when-reading-feels-like-temperature\"\u003e\u003c/a\u003eCommon mistakes when reading feels-like temperature\u003c/h2\u003e\n\u003cp\u003eRead feels-like temperature together with its calculation conditions and comparison criteria. Even if the numbers look the same, the data may mean different things. In particular, avoid confusing the following.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCommon mistake\u003c/th\u003e\n\u003cth\u003eWhat to check\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eEntering a wind speed of 1.3m/s directly into V in the formula\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eV is measured in km/h, and 1.3m/s equals 4.68km/h\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eConcluding that it is not cold because the feels-like temperature and air temperature are the same\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eThis site displays the air temperature when conditions fall outside the winter calculation conditions\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eDirectly comparing the current value with the daily minimum\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eCheck whether the location, time, and data type are the same\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eReducing cold-weather preparations because it is warmer than yesterday\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eCheck both the current feels-like temperature and the forecast for when you go out\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eEstimating the cold wave impact forecast level from the feels-like temperature color\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eCheck the impact forecast issued by the Korea Meteorological Administration for your area\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Common mistake\"\u003eInterpreting a service end date as the date the feels-like temperature formula is abolished\u003c/td\u003e\n\u003ctd data-label=\"What to check\"\u003eCheck the service name and scope stated in the notice\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n","tags":["Disaster Preparedness","Apparent temperature","Cold wave"],"faqs":[{"question":"When is the winter feels-like temperature calculated?","answer":"The Weather Data Open Portal defines winter as October through April of the following year. The feels-like temperature is calculated when the air temperature is at most 10℃ and the wind speed is at least 1.3m/s. Both conditions must be met."},{"question":"Are wind speeds of 1.3m/s and 4.68km/h the same?","answer":"They are the same speed. The wind speed variable V in the winter feels-like temperature formula is measured in km/h. Do not enter a value given in m/s without converting it."},{"question":"Why does it feel colder when the wind is stronger, even at the same air temperature?","answer":"Wind speeds up heat loss around the skin. The winter formula also accounts for the effect of wind speed. Within its applicable range, the calculated value decreases as wind speed increases if the air temperature stays the same."},{"question":"Why are the feels-like temperature and air temperature the same on this site?","answer":"From October to April, the site displays the feels-like temperature as equal to the air temperature when the air temperature is higher than 10℃. It does the same when the wind speed is less than 1.3m/s. This does not mean it is not cold."},{"question":"Is this site's feels-like temperature a value published by the Korea Meteorological Administration?","answer":"This site's feels-like temperature is a value the site calculates using a formula. It may differ from the value published by the Korea Meteorological Administration. When comparing values, check that the location and time also match."},{"question":"If it says it is warmer than yesterday, can I take fewer precautions against the cold?","answer":"Do not judge based only on the change from the previous day. Check both the current feels-like temperature and the forecast for when you plan to go out. It may still be cold even if the air temperature has risen since the previous day."},{"question":"Does the 2026 discontinuation notice apply to all feels-like temperature services?","answer":"No basis has been found for concluding that all feels-like temperature displays have been discontinued. Weather Nuri lists May 1. The Open Portal's Living Weather Index lists May 11. Check with the Korea Meteorological Administration about the difference in dates and exactly which services are affected."},{"question":"Are cold wave impact forecast levels determined by the feels-like temperature?","answer":"The Korea Meteorological Administration's material dated January 19, 2026 presents criteria for the health sector. It distinguishes between a sharp drop in the morning minimum temperature and persistently low temperatures. Do not use the colors in the feels-like temperature calculation table to infer the impact forecast level."},{"question":"When are cold wave impact forecasts issued?","answer":"According to the Korea Meteorological Administration's guidance, they are issued when at least the Attention level is expected in the health sector. They are issued once a day, at 11:30 on the previous day. They are provided by weather alert area."},{"question":"What should I do if I have symptoms of a cold-related illness after exposure to the cold?","answer":"See a doctor. The Korea Disease Control and Prevention Agency advises moving to a warm place. Remove wet clothing and keep warm with blankets or similar items."}],"sources":[{"url":"https://data.kma.go.kr/climate/windChill/selectWindChillChart.do?pgmNo=111","title":"Meteorological Data Open Portal apparent temperature: Explanation of seasonal calculation formulas, conditions, and observational data","type":"source"},{"url":"https://www.weather.go.kr/w/forecast/life/life-weather-index.do","title":"Korea Meteorological Administration Weather Nuri life weather indices: Discontinuation of the apparent temperature index and guidance on information by target group and environment","type":"source"},{"url":"https://data.kma.go.kr/data/lwi/lwiRltmList.do","title":"Meteorological Data Open Portal life weather indices: Notice of discontinuation of the apparent temperature service","type":"source"},{"url":"https://www.kma.go.kr/kma/biz/forecast03.jsp","title":"Korea Meteorological Administration weather information and alerts: Impact-based forecast levels and issuance conditions","type":"source"},{"url":"https://www.weather.go.kr/wnuri_help/html/weather/impact-info.jsp","title":"Korea Meteorological Administration Weather Nuri help: What impact-based forecasts mean and how they differ from weather alerts","type":"source"},{"url":"https://www.weather.go.kr/wgis-nuri/html/map.html","title":"Korea Meteorological Administration Weather Nuri: Qualitative criteria for each impact-based forecast risk level","type":"source"},{"url":"https://www.weather.go.kr/kma/news/press_01.jsp?mode=view\u0026num=1194589","title":"Korea Meteorological Administration strengthens the delivery system for cold wave impact-based forecasts for older adults: January 19, 2026 press release and attached issuance criteria","type":"data_point"},{"url":"https://www.kdca.go.kr/bbs/kdca/42/309528/artclView.do","title":"Korea Disease Control and Prevention Agency: Below freezing even during the day, beware of cold-related illnesses at year-end and the start of the new year, December 31, 2025","type":"source"},{"url":"https://www.kdca.go.kr/bbs/kdca/42/215496/artclView.do","title":"Korea Disease Control and Prevention Agency: Preparing for winter cold waves, emergency department surveillance system for cold-related illnesses begins operation, December 2, 2025, morning edition","type":"source"}],"images":[{"id":2750,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDIxNjAsInB1ciI6ImJsb2JfaWQifX0=--f7779c751dc5a7ba208c3d7e4433096bf335bbcf/ai-8eea63c2.webp","is_representative":true,"generation_method":"ai_photo","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"주황색 겨울 외투와 회색 목도리, 니트 모자를 쓴 젊은 남성이 열린 현관에서 장갑을 끼고 있다.","caption":"추운 날 외출할 때는 보온을 준비하세요.","description":null},"en":{"alt":"A young man in an orange winter coat, grey scarf and knit cap pulls on a glove at an open doorway.","caption":"Prepare to stay warm before going out on cold days.","description":null},"ja":{"alt":"オレンジ色の冬用コートに灰色のマフラーとニット帽を身につけた若い男性が、開いた玄関で手袋をはめている。","caption":"寒い日に外出するときは、防寒の準備をしましょう。","description":null},"es":{"alt":"Un joven con abrigo naranja, bufanda gris y gorro de punto se pone un guante junto a la puerta abierta.","caption":"Prepárate para mantener el calor antes de salir en días fríos.","description":null},"id":{"alt":"Pria muda berjaket oranye, bersyal abu-abu dan bertopi rajut mengenakan sarung tangan di ambang pintu terbuka.","caption":"Siapkan perlindungan agar tetap hangat sebelum keluar saat cuaca dingin.","description":null},"pt":{"alt":"Um jovem de casaco laranja, cachecol cinza e gorro de malha coloca uma luva junto à porta aberta.","caption":"Prepare-se para manter o corpo aquecido antes de sair em dias frios.","description":null},"zh-hant":{"alt":"一名穿著橘色冬季外套、戴著灰色圍巾與針織帽的年輕男子，在敞開的玄關戴上手套。","caption":"寒冷天氣外出前，請做好保暖準備。","description":null},"de":{"alt":"Ein junger Mann mit orangefarbener Winterjacke, grauem Schal und Strickmütze zieht an der Tür einen Handschuh an.","caption":"Bereiten Sie sich an kalten Tagen vor dem Hinausgehen auf die Kälte vor.","description":null}}},{"id":2751,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDIxNjYsInB1ciI6ImJsb2JfaWQifX0=--90c57775bffd40e2e6cb43a2b65d81567e1ce853/ai-c3ea8ae0.webp","is_representative":false,"generation_method":"ai_semi","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"자주색 카디건을 입은 노년 여성이 눈 쌓인 바깥을 뒤로하고 실내에서 발코니 문을 닫고 있다.","caption":"추운 날에는 야외활동을 줄이세요.","description":null},"en":{"alt":"An older woman in a raspberry cardigan closes a balcony door from indoors, with snow visible outside.","caption":"Limit outdoor activities on cold days.","description":null},"ja":{"alt":"赤紫色のカーディガンを着た年配の女性が、雪の見えるバルコニーのドアを室内から閉めている。","caption":"寒い日は屋外での活動を控えましょう。","description":null},"es":{"alt":"Una mujer mayor con un cárdigan frambuesa cierra desde dentro la puerta del balcón; afuera hay nieve.","caption":"Reduce las actividades al aire libre en los días fríos.","description":null},"id":{"alt":"Perempuan lansia berkardigan merah keunguan menutup pintu balkon dari dalam, dengan salju terlihat di luar.","caption":"Kurangi aktivitas di luar ruangan saat cuaca dingin.","description":null},"pt":{"alt":"Uma mulher idosa de cardigã framboesa fecha a porta da varanda por dentro, com neve visível lá fora.","caption":"Reduza as atividades ao ar livre nos dias frios.","description":null},"zh-hant":{"alt":"一位穿著莓紅色針織外套的年長女性從室內關上陽台門，門外可見積雪。","caption":"天冷時請減少戶外活動。","description":null},"de":{"alt":"Eine ältere Frau in himbeerroter Strickjacke schließt von innen die Balkontür; draußen liegt Schnee.","caption":"Reduzieren Sie an kalten Tagen Aktivitäten im Freien.","description":null}}}],"published_at":"2026-11-12T10:00:33+09:00","updated_at":"2026-11-12T10:00:33+09:00","license":"cc_by","translation_status":"reviewed","available_locales":["ko","en","ja","es"],"data_locales":["ko","en","ja","es","id","pt","zh-hant","de"],"url":"https://injoys.com/en/articles/winter-wind-chill-weather-reading-guide"}