On the 17th, the substitute holiday for Liberation Day, more than 250 millimeters of rain is forecast to pour down in the southern regions.
Expected precipitation for the day is 80–150 millimeters (more than 250 millimeters in some areas) for Busan and the southern coast of South Gyeongsang, 50–100 millimeters (more than 150 millimeters in some areas) for Ulsan and eastern inland South Gyeongsang, and 30–80 millimeters (more than 100 millimeters in some areas) for Jeju Island.
In addition, the country will be mostly cloudy, with raindrops in places. Gwangju and South Jeolla are expected to see 20–60 millimeters, Daejeon, Sejong, and South Chungcheong 5–40 millimeters, North Chungcheong 5–30 millimeters, North Jeolla 5–40 millimeters, and Seoul, Incheon, and Gyeonggi 5–20 millimeters of rain.
Also, showers in the afternoon are forecast to bring 5–50 millimeters to Seoul, Incheon, and Gyeonggi and to Daejeon, Sejong, South Chungcheong, and North Chungcheong, and 5–60 millimeters to inland and mountainous Gangwon and to North Jeolla.
Daytime highs are forecast at 27–32 degrees. The Korea Meteorological Administration expects apparent temperatures to rise to around 33 degrees, centered on the capital area, South Chungcheong, and the Jeolla region. In some urban and coastal areas, tropical nights are also likely.