Mild Weekend Weather... Subzero Cold Snap Expected Next Week

This weekend is expected to bring mild weather. However, after the weekend, starting next week, subzero temperatures and cold conditions are forecast.

On the 16th, when the weather finally felt like autumn, a high and clear blue autumn sky spread over the Gyeongbokgung area in Jongno-gu, Seoul. 2025.10.16 Photo by Jo Yongjun

According to the Korea Meteorological Administration on the 24th, the morning lows the next day will range from 9 to 17 degrees Celsius, and the daytime highs will be between 17 and 23 degrees Celsius. On the same day, the expected minimum and maximum temperatures for major cities are as follows: Seoul 13 and 18 degrees, Incheon 12 and 18 degrees, Daejeon 12 and 20 degrees, Gwangju 13 and 21 degrees, Daegu 13 and 20 degrees, Ulsan 14 and 20 degrees, and Busan 17 and 23 degrees.

Sunday, the 26th, is also expected to see mild weather. On the 26th, the morning lows and daytime highs are forecast to be 8 to 16 degrees Celsius and 16 to 22 degrees Celsius, respectively.

However, from the beginning of next week, a severe cold snap is expected, with temperatures dropping below freezing. On Monday, the 27th, morning lows are forecast to range from minus 1 to 11 degrees Celsius, and daytime highs from 9 to 15 degrees Celsius. It will be even colder on the 28th. On the 28th, morning lows will be between minus 2 and 9 degrees Celsius, with daytime highs expected to be between 10 and 17 degrees Celsius. Frost and ice may form in the inland central region, mountainous areas of Gangwon, and high mountain regions in the southern part of the country, potentially causing cold damage.

Next week's cold snap is due to a continental high-pressure system expanding its influence from northern China toward the West Sea. This continental high-pressure system brings in cold air from higher latitudes.

Meanwhile, the east coast is expected to continue experiencing rain throughout this month. On this day, occasional rain is forecast for Gangwon Yeongdong, North Gyeongsang, eastern South Gyeongsang, and the southern coastal area of western South Gyeongsang. Rain is also expected to continue until dawn the next day in northern Gangwon Yeongdong and the east coast of North Gyeongsang. Expected precipitation amounts are 10 to 40 mm for the east coast and northeastern mountainous areas of North Gyeongsang, 5 to 20 mm for Ulleungdo and Dokdo, 5 to 10 mm for Busan, Ulsan, eastern inland South Gyeongsang, and the southern coastal area of western South Gyeongsang, and around 5 mm for Gangwon Yeongdong and inland North Gyeongsang. On the 26th, less than 5 mm of rain is expected on the west coast of Incheon, Gyeonggi, and northern Chungcheongnam-do.