Weekly Forecast: Rain Monday and Tuesday, Sunny Wednesday to Saturday, Rain Again Sunday

Rain concentrated in Seoul, Busan, Gangneung and Jeju on October 12–13

Rain is expected in Seoul, Busan, Gangneung and Jeju on Monday, October 12, and Tuesday, October 13, followed by clearer conditions from midweek. Rain is expected again around October 18. In Seoul, a cold front is expected to bring rain on October 13, with a 70% chance of rain. Busan has an 80% chance of heavy rain that day. In Gangneung, the cold front is expected to bring cloudy skies or rain on October 12–13, with a 40–60% chance of rain. In Jeju, a stationary trough brings a 90% chance of rain on October 12, while low pressure brings a 70% chance on October 13.

Mostly sunny from October 14–17, with chilly mornings

Seoul, Busan, Gangneung and Jeju are expected to have mostly sunny weather from Wednesday, October 14, through Saturday, October 17, with a 10–40% chance of rain. Seoul will be sunny on October 14–15, with lows of 10–11°C, then cloudy on October 16, when the chance of rain rises to 40%. In Busan, skies will be clear on October 15 as high pressure moves southwest, with a low of 10°C; the high will reach 25°C on October 17. In Gangneung, after high pressure moves west on October 15, skies will be clear under high pressure around October 16, with a low of 10°C. In Jeju, high pressure will extend southwest on October 15, bringing clear skies and a low of 13°C. Highs will reach 25–26°C on October 16–17.

Rain returns to Seoul, Busan and other areas on Sunday, October 18

Rain is expected again in Seoul, Gangneung, Jeju and Busan on Sunday, October 18. Rain in Seoul and Gangneung is expected to let up at times, with an 80% chance of rain. Jeju will be rainy before turning cloudy, with a 70% chance of rain, while Busan will be cloudy with occasional rain and a 70% chance. Daytime highs are forecast at 25°C in Jeju, 24°C in Busan, and 22°C in Seoul and Gangneung. Rain is expected as temperatures remain cool, and areas that were sunny through October 17 should prepare for rain again on October 18.