Friday the 16th will be mild, with daytime highs in the southern regions climbing to 16 degrees.
Morning lows will range from -5 to 4 degrees, and, except for some areas such as Seoul (-1 degree), Incheon (-1 degree), and Chuncheon (-3), most regions are forecast to be above freezing.
Morning lows in major areas will be Seoul -1 degree, Incheon -1 degree, Suwon -2 degrees, Chuncheon -3 degrees, Gangneung 3 degrees, Cheongju 1 degree, Daejeon 0 degrees, Jeonju 0 degrees, Gwangju Metropolitan City 0 degrees, Daegu -1 degree, Busan 5 degrees, and Jeju 6 degrees.
Daytime highs are also forecast to be 4–16 degrees. Along the east coast, including Gangneung (12 degrees), and in southern regions such as Gwangju and Daegu (both 14 degrees), Busan (15 degrees), and Ulsan (16 degrees), highs will easily exceed 10 degrees.
However, with yellow dust originating recently from the Gobi Desert and the Inner Mongolia Plateau and air pollutants lingering nationwide, fine dust levels are expected to be mostly "bad."
At night, some areas, including the northern Chungnam west coast, may see raindrops of less than 0.1 mm.
From late afternoon, dense fog will form nationwide, so caution is advised for icy roads and thin ice on roads. Along the east coast, the air will be very dry with strong winds, requiring extra caution.
Waves will be 0.5–2.0 meters off the east coast and 0.5–1.0 meters off the west and south coasts.
Wave heights in the inner offshore waters (the offshore area within about 200 km of the coastline) are expected to be 1.0–2.5 meters in the East Sea and 0.5–2.0 meters in the West and South Seas.