Jeju Weather in July
South Korea · 30-year monthly averages
🤔 Fair time to visit
July in Jeju is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 24°C (75°F). Expect roughly 210mm of precipitation spread over about 9 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
29°C
85°F
Avg low
24°C
75°F
Rainfall
210mm
very wet
Rainy days
9
days with ≥1mm
☀️ About 190 hours of sunshine over the month (~6h/day).
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
- compact umbrella or rain jacket
July vs the rest of the year
FAQ
- How hot is Jeju in July?
- July in Jeju is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 24°C (75°F). Expect roughly 210mm of precipitation spread over about 9 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Jeju in July?
- Jeju sees around 210mm of precipitation in July on average — very wet by global standards.
- Is July a good time to visit Jeju?
- July is a workable month to visit Jeju, but expect some weather trade-offs.