Climate guide for Jeju Island, South Korea

Best Time to Visit
Jeju Island

How to read the score (0–10)
05810
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About Jeju Island

Jeju Island is a world-renowned destination in South Korea, celebrated for its breathtaking scenery, rich culture, and exceptional travel experiences. Volcanic UNESCO island of Hallasan peak, lava tubes, and coastal waterfalls.

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Travel Tips

Best time to visit Jeju Island
Check seasonal weather trends and book accommodations in advance for Jeju Island.

Things to do in Jeju Island

Jeju Island, South Korea. Live activities and tours from GetYourGuide, matched to this destination.

Frequently asked

When is the best time to visit Jeju Island, South Korea?
The best months to visit Jeju Island are March, April, October, November. March is the single peak month with a climate score of 8.9/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Jeju Island year-round?
Jeju Island has a nature and wildlife climate profile. Average monthly temperatures range from 10°C in January to 37°C in July, with climate scores between 7.5 and 8.9 out of 10.
Which months should I avoid in Jeju Island?
The lowest-scoring months in Jeju Island are January (7.5/10), February (7.5/10), May (7.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Jeju Island?
January is the wettest month in Jeju Island, averaging about 75 mm of rainfall. June is the driest, at roughly 35 mm.
Which is the sunniest month in Jeju Island?
January sees the most sun in Jeju Island, with about 21 sunny days on average - ideal for outdoor plans.
Is Jeju Island good for nature and wildlife travel?
Jeju Island is profiled as a nature and wildlife destination in South Korea, South Korea. Its highest-scoring window (March, April, October, November) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Jeju Island calculated?
Each month is rated 0-10 using ERA5 climate normals for Jeju Island: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for a nature and wildlife trip.

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