Current sea water temperature:
+49.6°F
| Minimum sea water temperature in April: | 55.8°F |
| Maximum sea water temperature in April: | 40.6°F |
| Average sea water temperature in April: | 49.0°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| April 12 | 49.6°F | April 7 | 49.1°F |
| April 11 | 50.4°F | April 6 | 48.9°F |
| April 10 | 50.4°F | April 5 | 48.4°F |
| April 9 | 50.4°F | April 4 | 48.0°F |
| April 8 | 49.6°F | April 3 | 47.5°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
April
April
| London |
Best time for vacation in London
London on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
London
Local time: 15:28
April 12, sunday
1800
52°F
NE
10 mph
10 mph
2100
48°F
NE
6 mph
6 mph
April 13, monday
0000
45°F
NE
4 mph
4 mph
0300
43°F
NE
3 mph
3 mph
0600
41°F
NE
2 mph
2 mph
0900
48°F
NE
3 mph
3 mph
1200
54°F
N
6 mph
6 mph
1500
52°F
N
6 mph
6 mph
