Climate and Average Weather in Jeju Island, South Korea

In South Korea you have several regions, one of which is called Jeju Island. The most popular city in this region is Jeju, whose climate data we'll examine to provide you with an overview of what weather to expect in Jeju Island. For detailed climate information about other cities in the area, please refer to the section beneath the map further down the page.

In Jeju Island, during the months of May, June and October you can expect comfortable weather, with average temperatures ranging from 20°C to 25°C. The coldest month is January with an average maximum temperature of 9°C. However, the specific temperature can vary depending on the exact location within the region.

Additional climate insights:

• Most rainfall (rainy season) is seen in June, July, August and September.
• June is the wettest month in Jeju Island. This month should be avoided if you are not a big fan of rain.
• November is the driest month.
• The warmest month in Jeju Island is August with an average maximum temperature of 29°C.
• The coldest month is January with an average maximum daytime temperature of 9°C.
• May is the sunniest month in Jeju Island.

Interested in the detailed Weather and Climate of Jeju Island, South Korea?

Please select a city below the map you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperature over the year
2. Average monthly precipitation over the year (rainfall, snow)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical climate data like humidity wind speed and water temperature.