What to expect in Jeju Island in July
July is usually the wrong time for Jeju Island: 28° / 23°. Consider May · October instead.
Jeju Island weather in July
Typical conditions in Jeju Island during July, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 28°C 82°F |
|---|---|
| Average low | 23°C 73°F |
| Rainfall | Wet 90/100 |
| Total rainfall | 210 mm8.3 in |
| Rainy days | 12 |
| Sea temperature | 24°C 75°F |
| Daylight | 14 h 10 min |
| How it feels | Warm and comfortable |
Average highs sit around 28°C with lows near 23°C. Expect a fair amount of rain, so plan indoor backups.
Crowds & demand
Crowd levels are High for Jeju Island — the biggest crowds of the year.
Prices & value
This month counts as shoulder season: prices close to the yearly average.
What to pack
Light layers for 28°C days and something with sleeves for evenings, which cool to around 23°C. Add a compact rain shell and shoes you do not mind soaking; this is one of the wetter months.
What it costs
Costs in July sit around the yearly average for Jeju Island — neither a bargain nor a squeeze. Booking a few weeks out is usually enough. Compared with the most expensive month of the year, you are looking at roughly 7% less.
Who this month suits
- Anyone travelling on a budget
- Families tied to school holidays
Events & what’s on
No major festivals fall in July, so the destination feels like its everyday self.
Jeju Island in July compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| May | 20° / 14° | Moderate | $$ | 61 |
| June | 24° / 18° | Moderate | $$ | 64 |
| July · This month | 28° / 23° | High | $$ | 45 |
| August | 30° / 24° | High | $$ | 41 |
| September | 26° / 20° | Moderate | $$ | 62 |
These months score higher for Jeju Island on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in July
If the destination is negotiable but the month is not, these places are at their best in July.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
