Current sea water temperature:
+80.2°F
| Minimum sea water temperature in August: | 86.5°F |
| Maximum sea water temperature in August: | 73.6°F |
| Average sea water temperature in August: | 81.2°F |
| more information | |
14 days
forecast
forecast
| Jeju |
monthly
weather
weather
| Jeju |
Sea water temperature for the last 10 days:
| August 6 | 80.2°F | August 1 | 85.8°F |
| August 5 | 81.9°F | July 31 | 86.0°F |
| August 4 | 82.9°F | July 30 | 85.6°F |
| August 3 | 84.6°F | July 29 | 84.9°F |
| August 2 | 85.1°F | July 28 | 84.2°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 78.3°F. The highest and lowest sea temperatures during the month were 86.0°F and 72.1°F.
current
weather
weather
| Jeju |
weather in
August
August
| Jeju |
Best time for vacation in Jeju
Jeju on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Jeju
Local time: 00:30
August 07, friday
0300
81°F
SW
16 mph
16 mph
0600
81°F
SW
19 mph
19 mph
0900
82°F
W
21 mph
21 mph
1200
84°F
W
21 mph
21 mph
1500
86°F
W
21 mph
21 mph
1800
84°F
W
19 mph
19 mph
2100
84°F
W
21 mph
21 mph
August 08, saturday
0000
84°F
W
22 mph
22 mph
