Jeju weather in July
July in Jeju: hot, soaked, with very humid — a good time to visit.
#6 of 12 months in Jeju · #410 of 604 destinations to visit in July · comfort 69/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Jeju climate normals — July
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 217 mm / 8.5 in | ⛈ soaked |
| Rainy days | 16 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 25°C / 77°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 14.1 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Jeju in July — FAQ
- Is July a good time to visit Jeju?
- July in Jeju: hot, soaked, with very humid — a good time to visit. It ranks #6 of 12 months for Jeju on SeasonMap's comfort score (69/100).
- What is the weather like in Jeju in July?
- In July, Jeju averages a daily high of 27.7°C and a low of 24.9°C, with about 216.5 mm of rain over roughly 16.2 rainy days.
- What is the air quality in Jeju in July?
- Jeju has a mean US Air Quality Index of about 51 in July.