On Monday the 27th, the country will be mostly cloudy, with rain starting at night in the greater Seoul area, Gangwon, and parts of Chungcheong.
According to the Korea Meteorological Administration on the 26th, the central region will be cloudy all day on the 27th, while the southern region will have intervals of many clouds before turning cloudy at night. Jeju Island will be mostly clear, with clouds gradually increasing from nighttime.
From nighttime, some areas will see rain, mainly in the greater Seoul area, inland and mountainous areas of Gangwon, and the northern Chungcheong West Sea coast.
Expected rainfall: Seoul, Incheon and Gyeonggi 5–10 mm; the five West Sea islands around 5 mm; inland and mountainous areas of Gangwon 5–20 mm; Daejeon, Sejong and South Chungcheong less than 5 mm.
Even before steady rain begins, many clouds will keep skies overcast nationwide. In the afternoon, there may be sprinkles of less than 0.1 mm mainly in the greater Seoul area, inland and mountainous areas of Gangwon, and the northern Chungcheong West Sea coast.
Morning lows are forecast at 6–14 C, with afternoon highs at 14–27 C.
Highs in major areas: Seoul 22 C, Wonju 22 C, Gangneung 16 C, Cheongju 23 C, Daejeon 24 C, Jeonju 25 C, Gwangju 24 C, Yeosu 23 C, Daegu 27 C, Busan 23 C, Jeju 20 C.
Fine dust levels will be "moderate" to "good" nationwide. Ozone levels are expected to be "bad" in Busan, Ulsan and South Gyeongsang, and "moderate" elsewhere.
Seas will be relatively calm.
On Tuesday the 28th, the country will remain mostly cloudy, with rain continuing in the greater Seoul area, Chungcheong and Gangwon.
Very dry conditions will persist mainly in the central region and North Gyeongsang, so take extra care to prevent wildfires and other blazes.