Understanding Korea’s weather before you travel
Korea has four distinct seasons with wide temperature swings, and the same date can feel very different depending on which city you visit. Before you pack, check both the average temperature and the rain pattern for your travel window. The forecast above is based on the Korea Meteorological Administration’s short-term data for major cities.
Seasons and what to pack
- Spring (Mar–May): Daytime highs of roughly 10–20°C, with cherry blossoms peaking in early April. Days and nights differ sharply and fine dust is common, so bring a light jacket and a mask.
- Summer (Jun–Aug): A rainy season from late June through July, then humid heat above 30°C in August. An umbrella, breathable clothing, and sunscreen are essential.
- Autumn (Sep–Nov): Clear, dry, and the best time to travel. Fall foliage peaks from late October to mid-November, and mornings turn crisp—pack a light knit or jacket.
- Winter (Dec–Feb): Seoul often drops below freezing and inland Gangwon is colder still. Bring a heavy padded coat, gloves, and hand warmers.
Regional climate differences
- Seoul & Gyeonggi: Continental climate—cold winters and large daily swings.
- Busan & the south coast: Milder winters but humid summers.
- Jeju: The warmest region, though strong winds can lower the feels-like temperature.
- Gangwon highlands: Frequent winter snow and a long ski season.
Using the forecast on your trip
Checking the city forecast two to three days ahead helps you adjust both clothing and your indoor/outdoor schedule. Move museums, markets, and cafés earlier on rainy days, and save observation decks or coastal routes for clear skies. For broader trip planning, see the packing checklist and our travel guides.