Current sea water temperature:
+65.8°F
| Minimum sea water temperature in September: | 68.2°F |
| Maximum sea water temperature in September: | 59.2°F |
| Average sea water temperature in September: | 63.4°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| September 8 | 65.8°F | September 3 | 66.6°F |
| September 7 | 66.7°F | September 2 | 66.7°F |
| September 6 | 66.7°F | September 1 | 65.7°F |
| September 5 | 67.1°F | August 31 | 67.3°F |
| September 4 | 66.7°F | August 30 | 66.6°F |
Monthly sea water temperature, °F
When is the warmest sea in London?
Based on the data about daily sea water temperature for the last three years the warmest sea in London was noticed in August, July and September.
Monthly Sea Temperatures in London, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 69.9°F. The highest and lowest sea temperatures during the month were 72.3°F and 66.6°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 70.1°F. The highest and lowest sea temperatures during the month were 72.7°F and 68.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 62.9°F. The highest and lowest sea temperatures during the month were 65.8°F and 59.2°F.
current
weather
weather
| London |
weather in
September
September
| London |
Best time for vacation in London
London on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
London
Local time: 11:19
September 08, tuesday
1200
57°F
SE
4 mph
4 mph
1500
57°F
SE
10 mph
10 mph
1800
59°F
E
9 mph
9 mph
2100
57°F
E
11 mph
11 mph
September 09, wednesday
0000
55°F
E
11 mph
11 mph
0300
54°F
E
10 mph
10 mph
0600
52°F
E
9 mph
9 mph
0900
59°F
SE
9 mph
9 mph
