Rain in the South and Jeju Until Afternoon...Clear Skies Nationwide Tomorrow

Clearing Skies in Central Regions From the Afternoon
Temperature Difference to Reach 10–15°C Tomorrow

On September 26, the third day of the Chuseok holiday, rain is expected in the southern regions and Jeju Island until the afternoon. In the central regions, the weather is forecasted to clear from the afternoon, while the last day of the holiday, September 27, is expected to be clear nationwide.

According to the Korea Meteorological Administration, as a low-pressure system passes over the southern sea, rain will fall in Daejeon, Sejong, southern South Chungcheong, and southern North Chungcheong during the morning; in the southern regions during the daytime; and in Jeju Island through the evening.

Citizens passing through the Gwanghwamun intersection in Seoul are hurrying on foot, equipped with umbrellas and rain boots. 2025.07.17 Photo by Dongju Yoon

The expected precipitation is 20 to 80 mm in the coastal areas of South Jeolla and Jeju, 10 to 60 mm in Gwangju and inland South Jeolla, 10 to 30 mm in Busan, Ulsan, and South Gyeongsang, 5 to 20 mm in North Jeolla, 5 to 10 mm in Ulleungdo and Dokdo, around 5 mm in Daegu and southern North Gyeongsang, and less than 5 mm in Daejeon, Sejong, southern South Chungcheong, and southern North Chungcheong.

The island regions of South Jeolla are forecasted to experience strong winds with instantaneous speeds exceeding 70 km/h (20 m/s) until daytime. In the coastal areas of South Jeolla and Jeju, strong winds with instantaneous speeds of around 55 km/h (and up to 70 km/h in the mountainous areas) are also expected to continue through the afternoon.

After the low-pressure system passes, Korea will come under the influence of high pressure accompanied by relatively cold and dry air descending from the Shandong Peninsula in China over the central regions. As a result, the weather will begin to clear in the central regions on the afternoon of September 26, and the last day of the holiday, September 27, is expected to be clear nationwide. However, Jeju Island is forecasted to receive additional rainfall of about 5 to 10 mm between the morning and afternoon on September 27.

Temperatures are expected to remain slightly higher than average for this time of year for the time being. At 8 a.m. on September 26, the temperatures in major cities were as follows: Incheon 19.4°C, Seoul 18.6°C, Busan 18.0°C, Gwangju 17.9°C, Daejeon 17.8°C, Daegu 17.7°C, and Ulsan 17.5°C. The expected daytime highs range from 21°C to 27°C.

Starting on September 27, as the skies clear, the temperature difference between day and night will widen again, particularly in inland areas, reaching 10 to 15 degrees Celsius, so caution is advised.

This content was produced with the assistance of AI translation services.