Seoul · South Korea
August
Near-identical to July — avoid unless weather doesn't matter to you.
Worth considering
#12 of 12 months
There are better months for Seoul — see the full ranking below.
See when to go instead →Climate
High
29°C
Low
22.5°C
Rain
249mm
Sun
6hrs/day
30-year climate normals · Open Meteo ERA5
How August scores in Seoul
Weather
Low
Value
Very good
Crowds
Very good
Events
Average
Atmosphere
Above average
What you gain in August
- ↑Still relatively cheap
- ↑Boryeong Mud Festival (coastal Korea) if you're branching outside Seoul
- ↑Late August: monsoon beginning to ease, conditions improving week by week
What you sacrifice
- ↓249mm of rain: sustained heavy showers most afternoons
- ↓29°C+ combined with 76% humidity makes outdoor sightseeing genuinely unpleasant
- ↓Peak heat index: felt temperature often exceeds 35°C
How August compares to October (best month)
| Factor | August | October ★ |
|---|---|---|
| Weather | 2 | 9 |
| Value | 7 | 5 |
| Crowds | 7 | 4 |
August in other destinations
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Seoul, not across destinations. Methodology →