Best time to swim in Jeju Island (Jejudo) in South Korea Sea temperature by month
Do you want to swim in the sea in Jeju Island (Jejudo) in South Korea? But when is the best time to go to be sure to have pleasant water for swimming in Jeju Island (Jejudo) and be able to swim without catching cold? This month, or a different one? The answer is on this page, with the sea water temperature by month in Jeju Island (Jejudo), based on the average temperatures recorded in previous years.
Best time to swim in Jeju Island (Jejudo): the water temperature by month
Do you feel like swimming in Jeju Island (Jejudo) in South Korea? Discover the average sea temperature for each month of the year (based on previous years' data) and our opinion on swimming in the table below. For more information on the sea temperature of a specific month, click on the month's name in the table.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 59°F (min: 56°F/max: 62°F) | freezing swimming |
| February | 57°F (min: 55°F/max: 59°F) | freezing swimming |
| March | 57°F (min: 54°F/max: 59°F) | freezing swimming |
| April | 59°F (min: 55°F/max: 62°F) | freezing swimming |
| May | 62°F (min: 58°F/max: 68°F) | cold swimming |
| June | 69°F (min: 63°F/max: 77°F) | cool swimming |
| July | 77°F (min: 70°F/max: 83°F) | pleasant swimming |
| August | 80°F (min: 74°F/max: 85°F) | ideal swimming |
| September | 77°F (min: 74°F/max: 80°F) | pleasant swimming |
| October | 72°F (min: 67°F/max: 76°F) | pleasant swimming |
| November | 66°F (min: 62°F/max: 71°F) | cool swimming |
| December | 61°F (min: 58°F/max: 65°F) | cold swimming |