Current sea water temperature:
+76.3°F
| Minimum sea water temperature in September: | 82.6°F |
| Maximum sea water temperature in September: | 69.6°F |
| Average sea water temperature in September: | 75.5°F |
| more information | |
14 days
forecast
forecast
| Incheon |
monthly
weather
weather
| Incheon |
Sea water temperature for the last 10 days:
| September 15 | 76.3°F | September 10 | 78.4°F |
| September 14 | 77.0°F | September 9 | 78.8°F |
| September 13 | 76.5°F | September 8 | 78.6°F |
| September 12 | 77.2°F | September 7 | 79.0°F |
| September 11 | 77.7°F | September 6 | 79.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Incheon?
Based on the data about daily sea water temperature for the last three years the warmest sea in Incheon was noticed in August, September and July.
Monthly Sea Temperatures in Incheon, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 82.1°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 78.7°F. The highest and lowest sea temperatures during the month were 80.8°F and 76.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 77.4°F. The highest and lowest sea temperatures during the month were 80.8°F and 73.2°F.
current
weather
weather
| Incheon |
weather in
September
September
| Incheon |
Best time for vacation in Incheon
Incheon on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Incheon
Local time: 13:04
September 16, wednesday
1500
82°F
E
3 mph
3 mph
1800
77°F
E
6 mph
6 mph
2100
75°F
S
2 mph
2 mph
September 17, thursday
0000
72°F
NW
3 mph
3 mph
0300
70°F
W
3 mph
3 mph
0600
68°F
W
3 mph
3 mph
0900
72°F
W
4 mph
4 mph
1200
79°F
W
6 mph
6 mph
