Current Sea Water Temperature:
+83.6°F
| Maximum Sea Water Temperature in August: | 90.0°F |
| Minimum Sea Water Temperature in August: | 75.0°F |
| Average water temperature in August: | 82.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| August 18 | 83.6°F | August 13 | 87.0°F |
| August 17 | 84.4°F | August 12 | 86.4°F |
| August 16 | 84.8°F | August 11 | 86.0°F |
| August 15 | 85.0°F | August 10 | 86.6°F |
| August 14 | 85.8°F | August 09 | 87.2°F |
When is the Warmest Sea for Incheon?
According to our data for the last three years for Incheon 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 2026 for Incheon was 86.5°F. The maximum and minimum values were 83.6°F and 89.6°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Incheon was 81.4°F. The maximum and minimum values were 75.6°F and 86.0°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Incheon was 80.4°F. The maximum and minimum values were 75.8°F and 84.2°F respectively.
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Incheon
Local time: 11:00
19 aug, wednesday
| 1200 |  |
86°F | NE 7 mph |
| 1500 | |
88°F | E 7 mph |
| 1800 | |
84°F | E 6 mph |
| 2100 | |
82°F | E 2 mph |
20 aug, thursday
| 0000 | |
82°F | NE 1 mph |
| 0300 | |
80°F | SW 1 mph |
| 0600 | |
80°F | SW 2 mph |
| 0900 | |
80°F | NW 3 mph |