Measurements:
°C
°F
Jeju
64°F
NE 2 mph
Feels like: 68°F
Precip: 0%
World Resorts South Korea Jeju Weather

Jeju Sea Water Temperature

Current Sea Water Temperature:
+63.6°F
Maximum Sea Water Temperature in April: 64.0°F
Minimum Sea Water Temperature in April: 55.4°F
Average water temperature in April: 59.7°F

Sea Water Temperature for the Last 10 Days:

April 27 63.6°F April 22 62.2°F
April 26 62.4°F April 21 62.2°F
April 25 62.6°F April 20 62.4°F
April 24 62.0°F April 19 62.2°F
April 23 62.2°F April 18 62.6°F

When is the Warmest Sea for Jeju?

According to our data for the last three years for Jeju the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for Jeju was 86.6°F. The maximum and minimum values were 84.0°F and 88.6°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Jeju was 83.6°F. The maximum and minimum values were 79.8°F and 86.6°F respectively.

Sea Water Temperature in July

Select Year: 2023 2022 2021

The average sea surface temperature in July 2023 for Jeju was 80.5°F. The maximum and minimum values were 74.0°F and 86.2°F respectively.

Best Time to Visit Jeju
The most sunny months:
October 15 days
May 15 days
March 14 days
The most warm months:
August 88.0 °F
July 85.1 °F
September 80.0 °F
Warmest sea temperature:
August 84.3 °F
September 79.6 °F
July 79.1 °F
The most cold months:
January 44.3 °F
February 46.1 °F
December 48.4 °F
The most rainy months:
August 9 days
July 8 days
September 7 days
The most windy months:
January 14 mph
December 14 mph
February 14 mph

Jeju on the Weather Map

South Korea Resorts:
NAME
Busan +64
Incheon +58
Jeju +64
Muju +60
Seoul +58
Yongpyong +66
24 Hours Weather Forecast
Jeju
Local time: 22:00
28 apr, sunday
0000 64°F
NE
3 mph
0300 62°F
W
2 mph
0600 60°F
NW
4 mph
0900 70°F
W
4 mph
1200 76°F
W
4 mph
1500 76°F
W
6 mph
1800 72°F
W
4 mph
2100 68°F
NW
6 mph