Seoul in May
8.0out of 10
Yes, a good time to go
Warm and comfortable: highs around 23°C. Some rain: about 8 rainy days.
23°CAvg high
12°CAvg low
8Rainy days (96 mm)
14:01 hDaylight
05:28Sunrise · 19:29 Sunset
Why this score
- Warm and comfortable: highs around 23°C
- Some rain: about 8 rainy days
What to wear and pack
- T-shirts and light layers
- A light jacket for cooler evenings
How reliable is the forecast?
Rainfall in May is fairly consistent from year to year (2.5 days). 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 May?
Daytime highs average 23°C and nights about 12°C.
When is the best time to visit Seoul?
The best months are May, October, September, June.