[Weather Tomorrow] Early Winter Cold... Morning Commute: Seoul 1C, Chuncheon 0C

On the 27th, as the morning temperature in Seoul dropped to 4 degrees Celsius, showing early winter weather, students were seen bundled up tightly while going to school near Gongdeok Station in Mapo-gu, Seoul. 2025.10.27 Photo by Jo Yongjun

On Monday, the 17th, temperatures are expected to drop sharply, bringing early winter cold.

The morning low will range from -1 to 10 degrees Celsius, and the daytime high will be between 5 and 13 degrees Celsius, which is similar to or slightly lower than the seasonal average.

As cold air flows in from the north, temperatures will drop significantly, and frost is expected in the inland and mountainous areas of central Korea, as well as in the high mountain regions of the southern provinces.

The skies will be mostly cloudy nationwide, but eastern regions will gradually clear up from the afternoon.

From the evening, there will be occasional rain in the western coastal areas of South Chungcheong and Jeolla provinces, as well as on Jeju Island.

The expected precipitation from the night of the 17th until the 18th is 5 to 10 millimeters for Jeju Island and Ulleungdo/Dokdo, around 5 millimeters for the western coasts of South Chungcheong and North Jeolla provinces, the southern inland, and the western part of Gwangju/Jeonnam, and less than 5 millimeters for the western coast of South Chungcheong. The Five West Sea Islands will see about 1 millimeter of rain.

In the mountainous areas of Jeju Island, 1 to 5 centimeters of snow is forecast from the night of the 17th over two days.

From early morning, very strong winds with instantaneous speeds of over 20 meters per second (25 meters per second in mountainous areas) are expected along the western coasts of South Chungcheong and Jeolla provinces, the southern east coast of North Gyeongsang, and from the morning in the mountainous areas of Jeju Island.

Fine dust concentrations will remain at a 'good' level nationwide. However, in the Chungcheong region, due to the influence of overseas fine dust, levels may briefly reach 'bad' in the early morning, but this will be resolved as clean northwesterly air flows in and vertical air circulation improves.

Wave heights are expected to be 0.5 to 3.5 meters in the East Sea, 1.0 to 3.5 meters in the West Sea, and 0.5 to 2.0 meters in the South Sea.

In the offshore areas (about 200 kilometers from the coastline), wave heights will be 1.0 to 5.0 meters in the East Sea, 1.5 to 4.0 meters in the West Sea, and 1.0 to 3.5 meters in the South Sea.