Asia › South Korea › Seoul
30-year normals (1991-2020)
Seoul has a continental with dry winters climate, classified as Dwa in the Köppen system. The warmest month is August with an average high of 29°C, while the coldest month is January with lows dropping to -7°C. The annual temperature range of 36°C is typical of continental climates with distinct seasons.
The driest month is February with only 4 rain days and 27mm of precipitation. For travellers, February through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 65% to 65% throughout the year.
Based on temperature and rainfall data, the best months to visit Seoul are October, April, May. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
Full Best Time to Visit GuideWarmest Month
29°C
August
Coldest Month
-7°C
January
Driest Month
4 days
February
Annual Range
36°C
-7° to 29°
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 1°C | -7°C | 4 | 8h | View |
| February | 4°C | -5°C | 4 | 9h | View |
| March | 10°C | 0°C | 6 | 9h | View |
| April | 17°C | 6°C | 7 | 10h | View |
| May | 22°C | 12°C | 8 | 10h | View |
| June | 26°C | 17°C | 9 | 10h | View |
| July | 28°C | 22°C | 17 | 8h | View |
| August | 29°C | 22°C | 16 | 9h | View |
| September | 25°C | 16°C | 8 | 9h | View |
| October | 19°C | 9°C | 5 | 9h | View |
| November | 11°C | 2°C | 7 | 7h | View |
| December | 3°C | -5°C | 5 | 8h | View |
January
4 rain days, 8h sun
February
4 rain days, 9h sun
March
6 rain days, 9h sun
April
7 rain days, 10h sun
May
8 rain days, 10h sun
June
9 rain days, 10h sun
July
17 rain days, 8h sun
August
16 rain days, 9h sun
September
8 rain days, 9h sun
October
5 rain days, 9h sun
November
7 rain days, 7h sun
December
5 rain days, 8h sun
Seoul in August
Data Sources for Seoul
Climate normals represent 30-year averages (1991-2020). Individual years may vary.