Current sea water temperature:
+58.1°F
| Minimum sea water temperature in February: | 61.5°F |
| Maximum sea water temperature in February: | 53.6°F |
| Average sea water temperature in February: | 57.3°F |
| more information | |
14 days
forecast
forecast
| Jeju |
monthly
weather
weather
| Jeju |
Sea water temperature for the last 10 days:
| February 24 | 58.1°F | February 19 | 59.0°F |
| February 23 | 59.5°F | February 18 | 58.3°F |
| February 22 | 58.8°F | February 17 | 58.8°F |
| February 21 | 59.0°F | February 16 | 58.8°F |
| February 20 | 58.3°F | February 15 | 58.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Jeju?
Based on the data about daily sea water temperature for the last three years the warmest sea in Jeju was noticed in August, September and July.
Monthly Sea Temperatures in Jeju, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 83.6°F. The highest and lowest sea temperatures during the month were 85.6°F and 80.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 82.5°F. The highest and lowest sea temperatures during the month were 85.6°F and 77.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.2°F. The highest and lowest sea temperatures during the month were 83.5°F and 73.6°F.
current
weather
weather
| Jeju |
weather in
March
March
| Jeju |
Best time for vacation in Jeju
Jeju on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Jeju
Local time: 08:38
February 25, wednesday
0900
48°F
SW
19 mph
19 mph
1200
50°F
SW
19 mph
19 mph
1500
52°F
SW
18 mph
18 mph
1800
50°F
W
17 mph
17 mph
2100
50°F
W
19 mph
19 mph
February 26, thursday
0000
50°F
W
17 mph
17 mph
0300
50°F
SW
17 mph
17 mph
0600
50°F
SW
15 mph
15 mph
