Current Sea Water Temperature:
+82.4°F
| Maximum Sea Water Temperature in July: | 86.2°F |
| Minimum Sea Water Temperature in July: | 68.8°F |
| Average water temperature in July: | 77.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 28 | 82.4°F | July 23 | 79.8°F |
| July 27 | 83.2°F | July 22 | 80.0°F |
| July 26 | 81.4°F | July 21 | 80.4°F |
| July 25 | 80.6°F | July 20 | 78.8°F |
| July 24 | 79.2°F | July 19 | 79.6°F |
When is the Warmest Sea for Seoul?
According to our data for the last three years for Seoul the highest average sea water temperature was in August, September and July.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Seoul was 84.2°F. The maximum and minimum values were 81.6°F and 86.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Seoul was 79.6°F. The maximum and minimum values were 74.6°F and 84.4°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Seoul was 79.5°F. The maximum and minimum values were 76.8°F and 83.2°F respectively.
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Seoul
Local time: 05:55
29 jul, wednesday
| 0600 |  |
80°F | NE 3 mph |
| 0900 | |
88°F | E 6 mph |
| 1200 |  |
94°F | E 9 mph |
| 1500 | |
94°F | E 11 mph |
| 1800 | |
88°F | E 10 mph |
| 2100 |  |
84°F | E 6 mph |
30 jul, thursday
| 0000 |  |
82°F | E 4 mph |
| 0300 | |
80°F | NE 2 mph |