Seoul in August
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 29°C. Very wet: about 15 rainy days.
29°CAvg high
22°CAvg low
15Rainy days (254 mm)
13:27 hDaylight
05:53Sunrise · 19:20 Sunset
Why this score
- Warm and comfortable: highs around 29°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±4.4 days)
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in August varies a lot between years (±4.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 2°C | -7°C | 19 mm | 4 | – | – | 4.8 |
| February | 5°C | -5°C | 26 mm | 4 | – | – | 5.3 |
| March | 11°C | 0°C | 38 mm | 6 | – | – | 6.4 |
| April | 18°C | 6°C | 70 mm | 7 | – | – | 7.4 |
| May | 23°C | 12°C | 96 mm | 8 | – | – | 8.0 |
| June | 27°C | 18°C | 134 mm | 9 | – | – | 7.6 |
| July | 28°C | 22°C | 311 mm | 17 | – | – | 6.1 |
| August | 29°C | 22°C | 254 mm | 15 | – | – | 6.1 |
| September | 26°C | 16°C | 123 mm | 8 | – | – | 7.8 |
| October | 20°C | 9°C | 54 mm | 5 | – | – | 8.0 |
| November | 12°C | 2°C | 47 mm | 7 | – | – | 6.4 |
| December | 4°C | -5°C | 23 mm | 5 | – | – | 5.1 |
Frequently asked questions
How hot is Seoul in August?
Daytime highs average 29°C and nights about 22°C.
When is the best time to visit Seoul?
The best months are May, October, September, June.