The weather in Jeju in July is very hot. The average temperatures are between 23°C and 27°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of July in Jeju. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Jeju in July 2026.
If you’re planning to visit Jeju in the near future, we highly recommend that you review the 14 day weather forecast for Jeju before you arrive.
Temperatures
27° / 23°
Rainy Days
9
Snowy Days
0
Dry Days
22
Rainfall
301
mm
Sun Hours
9.3
Hrs
