Jeju Weather in October
What's the weather like in Jeju (Jeju) in October 2025?
The climate in Jeju during October can be summarized as mild and a little damp.
October is in the fall / autumn in Jeju and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 12°C (54°F) is normal.
| Daytime temperature | 20°C 68°F |
|---|---|
| Nightly temperature | 12.1°C 53.8°F |
| Average temperature | 16.1°C 60.9°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 81 mm 3.2 ins |
| Rainy days | 8 days |
| Sea temperature | 22.2°C 72°F |
| Humidity | 71% |
| Windspeed | 12.4kph 8 mph |
On average October is the 5th driest month of the year in Jeju with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
October temperatures in Jeju
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Jeju in October 2025.
Other monthly averages
Best places to visit in October
Jeju weather stats
| Hottest month: | August | 27.7°C 81.9°F |
|---|---|---|
| Driest month: | December | 46mm 1.8ins |
| Sunniest month: | October | 7hrs |
| Coldest month: | January | 6.4°C 43.5°F |
| Wettest month: | July | 280mm 11ins |
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