South Korea Forecast: Sunny Wednesday With Highs Up to 27C, Big Day-Night Swings

By WOO JOOSEONG Posted : May 5, 2026, 20:34 Updated : May 5, 2026, 20:34
[Photo by Yonhap]
Wednesday the 6th is expected to be clear nationwide, with a wide gap between daytime highs and overnight lows.
 
The Korea Meteorological Administration forecast morning lows of 7-16C and daytime highs of 21-27C. Under the influence of a high-pressure system moving east from the southern Yellow Sea, inland areas are expected to see day-night temperature differences of around 15C, the agency said.
 
Forecast morning lows in major cities are: Seoul 11C, Incheon 12C, Chuncheon 7C, Gangneung 16C, Daejeon 10C, Daegu 9C, Jeonju 11C, Gwangju 9C, Busan 12C and Jeju 12C.
 
Forecast highs are: Seoul 23C, Incheon 21C, Chuncheon 24C, Gangneung 25C, Daejeon 25C, Daegu 26C, Jeonju 25C, Gwangju 25C, Busan 22C and Jeju 21C.
 
Fog is expected in parts of the mid-Yellow Sea offshore waters, and mariners are advised to use caution. Some islands in South Jeolla province may see dense fog with visibility under 200 meters and light drizzle through the morning.
 
Waves are forecast at 0.5 to 1.0 meters in nearshore waters of the East and Yellow seas and 0.5 to 1.0 meters in the nearshore South Sea. In offshore waters, wave heights are expected at 0.5-2.5 meters in the East Sea, 0.5-2.0 meters in the Yellow Sea and 0.5-1.5 meters in the South Sea.
 
Fine dust levels are expected to range from "good" to "moderate" nationwide.




* This article has been translated by AI.

Copyright ⓒ Aju Press All rights reserved.