Seoul: Weather Guide & Climate
Complete month-by-month weather guide: Seoul. Best time to visit: April, May, September, October. Plan your trip with detailed climate data.
☀️ Climate Overview
Seoul has a Moderate climate with average yearly highs of 18°C, lows of 9°C, and approximately 8 rainy days per month.
The best time to visit Seoul is during April, May, September, October, when conditions are perfect for sightseeing and exploration
Drier season: Jan–Dec Wetter season: May–Oct
Now
--
Air Quality
Hottest
Coldest
Driest Month
Windiest Month
17 km/h
April (gusts 39)
Forecast for your trip dates
Up to 14 days aheadWeather by Season
Spring
Mar–May
Summer
Jun–Aug
Autumn
Sep–Nov
Winter
Dec–Feb
Month-by-Month Weather Table
January
February
March
April
BestMay
BestJune
July
August
September
BestOctober
BestNovember
December
| Month | High | Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition | View Details |
|---|---|---|---|---|---|---|---|---|---|
| January | 4°C | -6°C | 4d (29mm) | 7.4h | 65% Humid | 3.8 Moderate | | Good | View Details → |
| February | 6°C | -4°C | 4d (23mm) | 8.1h | 65% Humid | 5 Moderate | | Good | View Details → |
| March | 14°C | 2°C | 6d (47mm) | 9h | 63% Moderate | 6.7 High | | Good | View Details → |
| April (best) | 19°C | 8°C | 6d (61mm) | 9.5h | 62% Moderate | 7.8 Very High | | Excellent | View Details → |
| May (best) | 23°C | 13°C | 9d (108mm) | 9.7h | 70% Humid | 8.1 Very High | | Excellent | View Details → |
| June | 28°C | 19°C | 10d (144mm) | 9.7h | 75% Humid | 8.2 Very High | | Good | View Details → |
| July | 30°C | 24°C | 17d (268mm) | 8.2h | 82% Very Muggy | 6.6 High | | Wet | View Details → |
| August | 30°C | 24°C | 16d (315mm) | 8.1h | 84% Very Muggy | 5.9 High | | Wet | View Details → |
| September (best) | 27°C | 19°C | 10d (189mm) | 8.1h | 80% Very Humid | 5.8 High | | Excellent | View Details → |
| October (best) | 20°C | 11°C | 7d (70mm) | 7.7h | 76% Humid | 4.8 Moderate | | Excellent | View Details → |
| November | 14°C | 3°C | 5d (48mm) | 7.8h | 71% Humid | 3.9 Moderate | | Good | View Details → |
| December | 4°C | -5°C | 5d (26mm) | 7.4h | 65% Humid | 3.4 Moderate | | Good | View Details → |
Seoul
K-pop capital, including palaces, Gyeongbokgung Palace and Myeongdong shopping & street food, street food markets, and ultra-modern districts.
View Full Destination Guide
Ready to Plan Your Seoul Trip?
Get strategic travel tips, seasonal insights, and expert recommendations.
Frequently Asked Questions
What type of climate does Seoul have?
When is the best time to visit Seoul?
What are the hottest and coldest months in Seoul?
When is the rainy season in Seoul?
Does it get cold at night in Seoul?
More Seoul Guides
Best Time to Visit
Coming soon
Things to Do
Coming soon
Where to Stay
Best neighborhoods and hotel recommendations
Cost & Budget
Daily costs, money-saving tips, and budget breakdown
Itineraries
Coming soon
Overview
Complete travel guide for Seoul: top things to do, itineraries, and typical costs.