Current sea water temperature:
+48.7°F
| Minimum sea water temperature in March: | 49.1°F |
| Maximum sea water temperature in March: | 40.1°F |
| Average sea water temperature in March: | 44.7°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| March 20 | 48.7°F | March 15 | 48.4°F |
| March 19 | 49.1°F | March 14 | 48.0°F |
| March 18 | 48.0°F | March 13 | 46.9°F |
| March 17 | 47.7°F | March 12 | 47.7°F |
| March 16 | 47.5°F | March 11 | 46.9°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 66.7°F. The highest and lowest sea temperatures during the month were 68.5°F and 64.6°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 70.2°F and 66.6°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
March
March
| London |
Best time for vacation in London
London on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
London
Local time: 13:20
March 20, friday
1500
55°F
SW
7 mph
7 mph
1800
50°F
W
7 mph
7 mph
2100
46°F
W
6 mph
6 mph
March 21, saturday
0000
43°F
SW
5 mph
5 mph
0300
41°F
SW
4 mph
4 mph
0600
39°F
SW
4 mph
4 mph
0900
46°F
SW
6 mph
6 mph
1200
54°F
SW
7 mph
7 mph
