Current sea water temperature:
+60.3°F
| Minimum sea water temperature in May: | 61.0°F |
| Maximum sea water temperature in May: | 49.1°F |
| Average sea water temperature in May: | 54.7°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| May 25 | 60.3°F | May 20 | 56.5°F |
| May 24 | 58.3°F | May 19 | 55.9°F |
| May 23 | 58.3°F | May 18 | 55.6°F |
| May 22 | 56.5°F | May 17 | 55.9°F |
| May 21 | 55.6°F | May 16 | 55.8°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
May
May
| London |
Best time for vacation in London
London on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
London
Local time: 18:14
May 25, monday
2100
77°F
NW
4 mph
4 mph
May 26, tuesday
0000
72°F
NW
4 mph
4 mph
0300
68°F
NW
3 mph
3 mph
0600
66°F
N
2 mph
2 mph
0900
79°F
N
4 mph
4 mph
1200
88°F
N
5 mph
5 mph
1500
91°F
N
7 mph
7 mph
1800
88°F
N
6 mph
6 mph
