Rain will begin early on the morning of the 9th, a Thursday, in the South Jeolla region and Jeju Island and expand nationwide.
According to the Korea Meteorological Administration on the 8th, rain is expected over most areas nationwide on the morning of the 9th. The rain will continue through the daytime on the 10th. In eastern Gyeonggi and the inland and mountainous areas of Gangwon, some places will see rain continue until late afternoon on the 10th.
Expected rainfall is 20–60 mm in the Seoul metropolitan area, 20–80 mm in the Chungcheong region, and 50–100 mm (120 mm or more in some places) along the Jeolla region and the southern coast of South Gyeongsang, with up to 250 mm on Jeju Island. Along the South Jeolla coast, the southern coast of South Gyeongsang, near Jirisan Mountain, and on Jeju Island, very heavy rain of 20–50 mm per hour is also possible.
With the rain, strong gusts and thunder and lightning are possible, so caution is advised for safety.
From the afternoon of the 9th, strong winds are expected over most areas nationwide. Instantaneous wind speeds will blow strongly at around 15 meters per second, and along the west and south coasts and on Jeju Island, very strong winds of more than 20 meters per second are possible.
The morning low on the 9th will be 3–12 C. By major area: Seoul 6 C, Incheon 6 C, Suwon 6 C, Chuncheon 3 C, Gangneung 12 C, Cheongju 6 C, Daejeon 6 C, Jeonju 8 C, Gwangju 8 C, Daegu 6 C, Busan 10 C, Jeju 12 C.
The afternoon high on the 9th will be 11–18 C, similar to or slightly below average. By area: Seoul 11 C, Incheon 12 C, Suwon 12 C, Chuncheon 12 C, Gangneung 17 C, Cheongju 15 C, Daejeon 15 C, Jeonju 17 C, Gwangju 18 C, Daegu 16 C, Busan 16 C, Jeju 20 C.