Average Monthly Sunshine in Jeju

The graphs on this page shows the average number of hours per month and per day that Jeju receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

If you're visiting Jeju, timing is key. In May, you can enjoy up to 211 hours of sunshine, while the shorter days of January provide just 69 hours. The total annual amount of sun is 1846 hours.

Daily hours of sunshine

In Jeju, summer days are longer and more sunny, with daily sunshine hours peaking at 7.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 2.3 hours per day.

Jeju’s total hours of sunshine compared to other major cities

Jeju enjoys an average of 1846 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Other climate information

June, Jeju’s wettest month, receives 175 mm of rainfall and has a maximum daytime temperature of 23°C. During the driest month November you can expect a temperature of 17°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Jeju Precipitation page.