Current sea water temperature:
+70.0°F
| Minimum sea water temperature in July: | 72.7°F |
| Maximum sea water temperature in July: | 59.2°F |
| Average sea water temperature in July: | 65.2°F |
| more information | |
14 days
forecast
forecast
| London |
monthly
weather
weather
| London |
Sea water temperature for the last 10 days:
| July 27 | 70.0°F | July 22 | 68.2°F |
| July 26 | 68.7°F | July 21 | 68.7°F |
| July 25 | 69.8°F | July 20 | 70.3°F |
| July 24 | 68.2°F | July 19 | 70.3°F |
| July 23 | 69.3°F | July 18 | 69.4°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:
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: 04:23
July 28, tuesday
0600
66°F
NE
4 mph
4 mph
0900
73°F
NE
6 mph
6 mph
1200
81°F
NE
6 mph
6 mph
1500
88°F
NE
6 mph
6 mph
1800
88°F
NE
9 mph
9 mph
2100
81°F
N
9 mph
9 mph
July 29, wednesday
0000
73°F
NE
3 mph
3 mph
0300
70°F
NE
4 mph
4 mph
