Weather in Jungmun Beach, Jeju Island, South Korea in January

January is the coldest month in Jeju Island, with temperatures ranging from 2°C to 8°C. The beach is not crowded during this time as it is not ideal for swimming or sunbathing. There are no public holidays or special events in January that attract crowds to Jungmun Beach.

The weather in January is noticeably cooler than the previous month. The average maximum temperature in Jungmun Beach in January is 7°C (45°F). The average maximum temperature is 10°C (50°F) in the previous month and 9°C (48°F) in the next month.

The average temperature in Jungmun Beach in January is 5°C (41°F). The average temperature is 7°C (45°F) in the previous month and 6°C (43°F) in the next month.

The average minimum temperature in Jungmun Beach in January is 3°C (38°F). The minimum temperature is 5°C (41°F) in the previous month and 4°C (38°F) in the next month.

The days in January are marginally longer than the previous month and the days continue to get slightly longer into February. January has slightly less hours of sunshine than the previous month. During January the average day light hours are 10.2 per day in Jungmun Beach. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.9 hours of sunshine per day.

The ultraviolet index in Jungmun Beach in January is typically 3.3 during January. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.