Current sea water temperature:
+70.9°F
| Minimum sea water temperature in August: | 74.1°F |
| Maximum sea water temperature in August: | 63.3°F |
| Average sea water temperature in August: | 66.5°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| August 17 | 70.9°F | August 12 | 70.7°F |
| August 16 | 70.3°F | August 11 | 70.0°F |
| August 15 | 70.5°F | August 10 | 70.2°F |
| August 14 | 70.7°F | August 9 | 69.6°F |
| August 13 | 70.0°F | August 8 | 69.6°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 70.1°F. The highest and lowest sea temperatures during the month were 70.9°F and 69.3°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
August
August
| London |
Best time for vacation in London
London on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
London
Local time: 00:28
August 18, tuesday
0300
66°F
E
9 mph
9 mph
0600
64°F
E
9 mph
9 mph
0900
70°F
E
10 mph
10 mph
1200
73°F
E
11 mph
11 mph
1500
77°F
E
12 mph
12 mph
1800
77°F
E
9 mph
9 mph
2100
72°F
E
9 mph
9 mph
August 19, wednesday
0000
68°F
SE
8 mph
8 mph
