On Monday the 29th, there will occasionally be rain or snow, mainly in the central region.
Skies will be mostly cloudy nationwide, but the central region and North Gyeongsang will gradually clear from the night.
The rain and snow that began in northeastern Gyeonggi, inland and mountainous Gangwon, and South Chungcheong will expand to other central areas including Seoul at dawn and to the western inland of North Gyeongsang, the northeastern inland and mountains, and North Jeolla in the morning, then stop in most areas in the afternoon.
Along the southern coast of South Gyeongsang and on Jeju Island at dawn, and in northern South Jeolla, other inland parts of North Gyeongsang, and the western inland of South Gyeongsang, some places may see raindrops of less than 0.1 mm.
Over the two days of the 28th–29th, about 5 mm of rain is forecast for northeastern Gyeonggi; inland and mountainous Gangwon; and Daejeon, Sejong, and South Chungcheong. On the 29th alone, Seoul, Incheon, Gyeonggi, and the five West Sea islands, and North Chungcheong will see about 5 mm, North Jeolla less than 5 mm, and the western inland and northeastern inland and mountains of North Gyeongsang, and Ulleung Island and Dokdo about 1 mm of rain.
Expected snowfall over the two days is 3–8 cm in the Gangwon mountains, 2–7 cm in northern inland Gangwon, and 1–5 cm in central and southern inland Gangwon. In northeastern Gyeonggi, around 1 cm of snow will accumulate on the 29th.
In areas with rain or snow, many places will see icy patches and black ice on roads, so commuters should use caution for traffic safety.
Morning lows will be -2 to 7 degrees, and daytime highs will be 5 to 14 degrees, higher than average.
With fine dust blowing in from overseas into the Seoul metropolitan area, Yeongseo in Gangwon, the Chungcheong region, Gwangju, North Jeolla, and Daegu, fine dust levels will be at "bad." In Yeongdong in Gangwon and in South Jeolla and North Gyeongsang from late afternoon, and in Busan, Ulsan, South Gyeongsang, and Jeju Island at night, air quality will be poor.
Waves will run 0.5–1.5 meters in all nearshore waters, including the East Sea, West Sea, and South Sea.
In the outer offshore waters (about 200 km from the coastline), wave heights are expected to be 1.0–3.5 meters in the East Sea and 0.5–2.0 meters in the West and South Seas.