🇰🇷 Jeju Island vs Seoul 🇰🇷
Jeju Island, South Korea vs Seoul, South Korea — a side-by-side climate comparison to help you pick. Jeju Island is the warmer of the two — about 1 degree warmer on average across the year. Seoul is drier, with roughly 41 fewer rainy days a year.
Climate at a glance
| 🇰🇷 Jeju Island | 🇰🇷 Seoul | |
|---|---|---|
| Avg annual high | 18°C | 17°C |
| Hottest month | August (29°C) | August (30°C) |
| Coldest month | January (3°C low) | January (-6°C low) |
| Rainy days / year | 153 | 112 |
| Snow | Rare | Yes |
| Best months to visit | May, June, October | May, September, October |
🇰🇷 Jeju Island
Best around May, June, October. Hottest in August (29°C), coldest lows in January (3°C).
🇰🇷 Seoul
Best around May, September, October. Hottest in August (30°C), coldest lows in January (-6°C).
Frequently asked questions
Is Jeju Island or Seoul warmer?
Jeju Island is warmer overall, averaging about 1 degree higher across the year.
Which is rainier, Jeju Island or Seoul?
Jeju Island is rainier — Seoul sees about 41 fewer rainy days per year.
When is the best time to visit Jeju Island vs Seoul?
Jeju Island is best around May, June, October; Seoul is best around May, September, October.