On Sunday the 19th, the country will be mostly cloudy, with strong winds and temperatures dropping sharply from the afternoon.
According to the Korea meteorological Administration, the sky across the country will be mostly cloudy with rain in places.
On this day, the North Gyeongsang east coast and Busan and Ulsan will see occasional rain until dawn, Gangwon Province until the morning, and Jeju Island until the afternoon. Expected rainfall is 5–20 mm in Gangwon Yeongdong and Jeju Island, 5–10 mm on the North Gyeongsang east coast and the northeastern mountains of North Gyeongsang; Busan, Ulsan, and the eastern inland of South Gyeongsang will see less than 5 mm.
The morning low will be 10–17 C, and the daytime high will be 17–23 C. From the afternoon, as cold air from the north moves in, temperatures will drop sharply, and with strong winds, the wind chill will fall further.
Morning lows: ▲ Seoul 13 C ▲ Incheon 12 C ▲ Chuncheon 12 C ▲ Gangneung 13 C ▲ Daejeon 14 C ▲ Cheongju 14 C ▲ Daegu 15 C ▲ Jeonju 14 C ▲ Gwangju 14 C ▲ Busan 18 C ▲ Jeju 21 C ▲ Ulleungdo and Dokdo 12 C.
Daytime highs are forecast as follows: ▲ Seoul 19 C ▲ Incheon 18 C ▲ Chuncheon 19 C ▲ Gangneung 20 C ▲ Daejeon 21 C ▲ Cheongju 21 C ▲ Daegu 21 C ▲ Jeonju 21 C ▲ Gwangju 21 C ▲ Busan 22 C ▲ Jeju 23 C ▲ Ulleungdo and Dokdo 17 C.
From the 20th, morning lows are expected to drop further to around 2–10 C. Take care to manage your health amid the rapid temperature drop.
Also, in the Gangwon mountains, where a low cloud deck will flow in for the time being, some areas are expected to see dense fog with visibility under 200 meters. Along the coasts and on Jeju Island, some areas will see strong winds with instantaneous speeds around 55 km/h (15 m/s).
Fine dust concentrations will be "good" across all regions thanks to smooth atmospheric dispersion.