๐ Korea Weather Guide: Seasons, Rain and Typhoons
Koreaโs weather changes a lot between seasons, and between the coast, the mountains and the south. Here are the main patterns and the numbers we could verify.
Planning ยท Updated 2026-10-05 ยท 4 min read
Four seasons at a glance
Spring (March to May): mild, 11ยฐC to 24ยฐC. Summer (June to August): hot and humid, 27ยฐC to 31ยฐC. Autumn (September to November): pleasant, 12ยฐC to 27ยฐC. Winter (December to February): cold, -5ยฐC to 4ยฐC.
Seoul in numbers
According to the Seoul Metropolitan Government, Seoulโs average temperature is -0.4ยฐC in January and 28.8ยฐC in July, with an annual average of 14.05ยฐC. Annual rainfall is about 1,582 mm, with July (about 294 mm) and August (about 290 mm) the wettest months.
Rainy season and typhoons
The rainy season is late June through July, and VisitKorea recommends checking the forecast if you travel then. Typhoons occur between June and October.
Winter wind
Winter cold is made sharper by northerly winds from Siberia, so the temperature can feel lower than the number.
Where to check the forecast
The Korea Meteorological Administration (kma.go.kr) is the official source, and apps such as Naver Weather show current conditions and air quality.
Prices, schedules and entry rules change. The figures below are approximate and reflect information available when this guide was last reviewed; always confirm with the official source before you travel.