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 17°C, lows of 8°C, and approximately 9 rainy days per month.
The best time to visit Seoul is during April, May, September, October, when conditions are perfect for sightseeing and exploration
Now
--
Air Quality
Best Time
Apr, May, Sep, Oct
Hottest
Coldest
Driest Month
Forecast for your trip dates
Up to 16 days ahead| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 5°C | -4°C | 4 | Good |
| February | 6°C | -3°C | 7 | Good |
| March | 12°C | 0°C | 5 | Good |
| April | 16°C | 4°C | 2 | Excellent (best) |
| May | 22°C | 12°C | 10 | Excellent (best) |
| June | 28°C | 18°C | 10 | Good |
| July | 27°C | 20°C | 20 | Wet |
| August | 29°C | 23°C | 21 | Wet |
| September | 24°C | 16°C | 13 | Excellent (best) |
| October | 18°C | 8°C | 3 | Excellent (best) |
| November | 11°C | 2°C | 6 | Good |
| December | 3°C | -6°C | 1 | Good |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
Weather by Season
Winter
Dec–Feb
High: 5°C
Low: -4°C
Rainy days: 4 days/month
Spring
Mar–May
High: 17°C
Low: 5°C
Rainy days: 6 days/month
Summer
Jun–Aug
High: 28°C
Low: 20°C
Rainy days: 17 days/month
Autumn
Sep–Nov
High: 18°C
Low: 9°C
Rainy days: 7 days/month
Month-by-Month Weather Table
January
February
March
April
BestMay
BestJune
July
August
September
BestOctober
BestNovember
December
| Month | High | Low | Rainy days | Condition | View Details |
|---|---|---|---|---|---|
| January | 5°C | -4°C | 4 | Good | View Details → |
| February | 6°C | -3°C | 7 | Good | View Details → |
| March | 12°C | 0°C | 5 | Good | View Details → |
| April (best) | 16°C | 4°C | 2 | Excellent | View Details → |
| May (best) | 22°C | 12°C | 10 | Excellent | View Details → |
| June | 28°C | 18°C | 10 | Good | View Details → |
| July | 27°C | 20°C | 20 | Wet | View Details → |
| August | 29°C | 23°C | 21 | Wet | View Details → |
| September (best) | 24°C | 16°C | 13 | Excellent | View Details → |
| October (best) | 18°C | 8°C | 3 | Excellent | View Details → |
| November | 11°C | 2°C | 6 | Good | View Details → |
| December | 3°C | -6°C | 1 | Good | View Details → |
Seoul
K-pop capital, including palaces, Gyeongbokgung Palace and Myeongdong shopping & street food, street food markets, and ultra-modern districts.
Ready to Plan Your Seoul Trip?
Get strategic travel tips, seasonal insights, and expert recommendations.
Common Questions
What type of climate does Seoul have?
Seoul has a Moderate climate with average yearly temperatures of 17°C (highs) and 8°C (lows).
When is the best time to visit Seoul?
The best time to visit Seoul is during April, May, September, October, when temperatures average around 16°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in Seoul?
The hottest month in Seoul is August with average highs of 29°C, while the coldest is December with average lows of -6°C.
When is the rainy season in Seoul?
Seoul sees the most rain in August (21 rainy days), while December is the driest month (1 rainy days).
More Seoul Guides
Best Time to Visit
Coming soon
Things to Do
Coming soon
Itineraries
Coming soon
Overview
Complete travel guide for Seoul: top things to do, itineraries, and typical costs.