Cold Northwest Winds Push South Korea Temperatures Down October 14

South Korea will experience a sharp change in weather on Wednesday, October 14, as cold air moves in from the northwest following recent rain. The Korea Meteorological Administration forecasts morning temperatures 5 to 10 degrees Celsius lower than the previous day, with strong winds making conditions feel colder across much of the country.

Seoul and Daejeon are expected to record morning lows of 9 C, while Incheon will reach 10 C, according to reports from MBC News, Kyeonggi.com, and KBS News. Chuncheon is forecast to drop to 7 C, while Daegu will see 11 C, Gwangju and Ulsan 12 C, and Busan 14 C.

Inland areas of Gangwon Province and its mountainous districts could see temperatures near 5 C, representing a decline of around 10 degrees in some locations. Daytime highs are expected to remain between 17 C and 22 C nationwide, limiting the afternoon recovery from the morning chill.

Seoul and Daejeon are forecast to reach 20 C during the afternoon, while Gwangju, Daegu, and Ulsan could reach 21 C. Busan is expected to record a high of 22 C, according to the Korea Meteorological Administration forecasts cited by the three outlets.

Strong winds will intensify the cold across the country. Kyeonggi.com reports that gusts could reach approximately 55 km/h in many areas and up to 70 km/h in mountainous districts, lowering perceived temperatures beyond what thermometers indicate.

The temperature decline follows a shift in atmospheric pressure, with high pressure positioned west of the Korean Peninsula and low pressure to the east. According to Kyeonggi.com, cold northwesterly winds flowing along the edge of a high-pressure system moving from central China are driving the change.

Rain is expected to taper off as clearer skies develop. KBS News reports that scattered showers may continue through Wednesday night in parts of central South Korea and the Honam region, while high pressure should bring generally clear conditions nationwide on October 14.

Colder conditions could intensify further Thursday, October 15. Kyeonggi.com forecasts morning lows of 4 C to 12 C nationwide, with frost possible in parts of Gangwon Province, Chungcheongbuk-do, and some southern inland areas. Ice could form in mountainous parts of Gangwon Province.

Afternoon temperatures on October 15 are expected to recover to between 20 C and 24 C, according to Kyeonggi.com. KBS News also forecasts a brief warming later in the week, followed by rain across the country on Sunday and another temperature decline.

Marine conditions are also expected to deteriorate. Beginning late Tuesday, October 13, strong winds will spread across offshore waters, including the Yellow Sea, the South Sea, waters near Jeju Island, and parts of the East Sea. Kyeonggi.com forecasts wind speeds of 30 to 55 km/h and waves of 1.5 to 4 meters, with waves exceeding 5 meters possible in parts of the northern outer East Sea.