Weekly forecast: Clear early and midweek, heavy rain in the south over the weekend

Clear nationwide on October 21-22, followed by cool, dry weather

From Wednesday, October 21, through Thursday, October 22, skies will gradually clear and temperatures will turn cooler nationwide as a low-pressure system and a front pass through. On Wednesday, the low-pressure system will move northeast. Seoul will clear after rain, with a high of 16°C, while Gangneung will be sunny all day, reaching 20°C. A cold front will lie across Busan and Jeju. Busan will be mostly clear, with occasional heavy rain and storms, and a high of 23°C. Jeju will clear after rain, with a high of 19°C. On Thursday, high pressure will settle over the country, bringing clear, dry weather to all four cities. Highs will be 15°C in Seoul, 14°C in Gangneung, 18°C in Busan and 16°C in Jeju.

Variable conditions by region and mild temperatures on October 23-24

Weather will vary by city on Friday, October 23, and Saturday, October 24. On Friday, with no change in the pressure pattern, Seoul will be mostly clear with occasional clouds and a high of 20°C. Gangneung will be cloudy with occasional clear spells, reaching 17°C. Busan will be mostly clear with occasional rain and a high of 22°C, while Jeju will be clear before rain begins later, also reaching 22°C. On Saturday, a stationary front will lie near the country, but rain is expected only in Busan and Jeju, where highs will be 21°C and 24°C, respectively. Seoul and Gangneung will be mostly sunny with occasional clouds and mild highs of 23°C and 22°C.

Heavy rain focused on Jeju and Busan on October 25-26, followed by improving conditions nationwide

Very heavy rain will be concentrated mainly in Jeju and Busan on Sunday, October 25, and Monday, October 26. In Jeju, heavy rain and storms on Sunday will give way to cloudy skies, with a high of 28°C. On Monday, it will be cloudy before rain arrives later, with a high of 27°C. Busan will see heavy rain and storms on Sunday, with a high of 24°C. Rain is expected on Monday before easing, with a high of 25°C. Rain will also persist in Gangneung and Seoul. Gangneung will have rain on both days, with highs of 20°C and 18°C. Seoul will be clear before rain on Sunday, and on Monday rain will be followed by cloudy skies; highs will be 22°C and 21°C, respectively. On Tuesday, October 27, skies will clear nationwide again, with highs of 16°C in Seoul, 17°C in Gangneung, 19°C in Busan and 20°C in Jeju, bringing cooler conditions.