Cold wave advisory set to take effect Thursday night as temperatures drop 10 degrees

Temperatures across South Korea are forecast to drop about 10 degrees Celsius by Thursday morning, with parts of northeastern Gyeonggi Province and inland and mountainous Gangwon Province falling below freezing. A cold wave advisory will take effect after midnight Thursday for most inland areas. Morning lows are forecast at 0 to 10 degrees nationwide, while daytime highs will reach 14 to 19 degrees. The cold is expected to ease, with temperatures returning to normal Friday afternoon and rising slightly above normal on Sunday.

The advisory is issued from October to April when the morning low is forecast to fall at least 10 degrees from the previous day to 3 degrees or below and to be at least 3 degrees below normal.

Frost is forecast in inland areas, and ice is expected in eastern Gyeonggi Province, inland and mountainous Gangwon Province, North Chungcheong Province, northeastern North Jeolla Province, and inland central and northeastern mountainous areas of North Gyeongsang Province.

Forecast lows and highs are 5 and 16 degrees in Seoul, 3 and 15 in Incheon, and 3 and 17 in Daejeon.

Temperatures are forecast to vary by 15 degrees or more between morning and afternoon.

Temperatures are expected to remain below normal until Friday morning; normal lows range from 5 to 14 degrees and normal highs from 19 to 22 degrees.

Published Oct 21, 2026 9:02 pm KST

Updated Oct 21, 2026 10:19 pm KST

A pedestrian walks with arms crossed in Jongno District, Seoul, Oct. 6. Yonhap

Thursday morning temperatures are forecast to drop about 10 degrees Celsius from Wednesday, with parts of northeastern Gyeonggi Province and inland and mountainous Gangwon Province dipping below freezing.

A cold wave advisory will take effect after midnight Thursday for most inland areas. It is issued from October to April when the morning low is forecast to fall at least 10 degrees from the previous day to 3 degrees or below and to run at least 3 degrees below normal.

Morning lows on Thursday are forecast at 0 to 10 degrees nationwide. Frost will form in inland areas and ice in eastern Gyeonggi Province, inland and mountainous Gangwon Province, North Chungcheong Provice, northeastern North Jeolla Province and inland central and northeastern mountainous areas of North Gyeongsang Province.

Daytime highs will stay between 14 and 19 degrees. Temperatures will swing by 15 degrees or more between morning and afternoon.

Forecast lows and highs are 5 and 16 degrees in Seoul, 3 and 15 in Incheon, 3 and 17 in Daejeon, 8 and 17 in Jeonnam-Gwangju Special Metropolitan City, 5 and 17 in Daegu, 7 and 18 in Ulsan and 10 and 19 in Busan.

The cold is not expected to last long. Temperatures will stay below normal until Friday morning, with normal lows ranging from 5 to 14 degrees and normal highs from 19 to 22 degrees. Temperatures will return to normal Friday afternoon and keep rising to slightly above normal on Sunday.

预计韩国全国气温将于周四早晨下降约10摄氏度，东北部京畿道以及内陆山区江原道部分地区气温将降至冰点以下。周四午夜过后，大部分内陆地区将发布寒潮预警。全国早晨最低气温预计在0至10摄氏度之间，白天最高气温将达到14至19摄氏度。预计寒潮将逐渐缓解，气温将于周五下午恢复正常，并在周日略高于正常水平。

该预警发布时间为 10 月至 4 月，当预计早晨最低气温将比前一天至少下降 10 度，降至 3 度或以下，并且比正常水平至少低 3 度时。

预计内陆地区将出现霜冻，京畿道东部、江原道内陆山区、忠清北道、全罗北道东北部以及庆尚北道中部和东北部山区将出现冰冻。

首尔最低气温和最高气温分别为 5 度和 16 度，仁川分别为 3 度和 15 度，大田分别为 3 度和 17 度。

预计早晨和下午的气温变化幅度将达到15度或更多。

预计气温将持续低于正常水平直至周五早上；正常最低气温范围为 5 至 14 度，正常最高气温范围为 19 至 22 度。

发布于2026年10月21日晚上9:02（韩国标准时间）

更新于2026年10月21日晚上10:19（韩国标准时间）

10月6日，一名行人双臂交叉走在首尔钟路区街头。（韩联社）

预计周四早晨气温将比周三下降约 10 摄氏度，京畿道东北部部分地区以及江原道内陆山区气温将降至冰点以下。

周四午夜过后，大部分内陆地区将发布寒潮预警。该预警通常在10月至次年4月期间发布，当预计早晨最低气温将比前一天至少下降10度，降至3度或以下，并比正常水平低至少3度时，就会发布寒潮预警。

预计周四全国早晨最低气温为0至10摄氏度。京畿道东部内陆地区、江原道内陆及山区、忠清北道、全罗北道东北部以及庆尚北道中部和东北部内陆山区将出现霜冻，冰冻天气将出现。

白天最高气温将保持在14至19度之间。早晚气温波动幅度将达到15度或更多。

首尔最低气温和最高气温分别为 5 度和 16 度，仁川分别为 3 度和 15 度，大田分别为 3 度和 17 度，全南光州特别广域市分别为 8 度和 17 度，大邱分别为 5 度和 17 度，蔚山分别为 7 度和 18 度，釜山分别为 10 度和 19 度。

寒冷天气预计不会持续太久。气温将持续低于正常水平直至周五早晨，最低气温正常范围为5至14摄氏度，最高气温正常范围为19至22摄氏度。周五下午气温将恢复正常，并在周日继续回升至略高于正常水平。