Current sea water temperature:
+66.2°F
| Minimum sea water temperature in July: | 66.6°F |
| Maximum sea water temperature in July: | 56.1°F |
| Average sea water temperature in July: | 60.8°F |
| more information | |
14 days
forecast
forecast
| Plymouth |
monthly
weather
weather
| Plymouth |
Sea water temperature for the last 10 days:
| July 16 | 66.2°F | July 11 | 65.7°F |
| July 15 | 66.4°F | July 10 | 64.6°F |
| July 14 | 65.5°F | July 9 | 63.3°F |
| July 13 | 66.6°F | July 8 | 63.3°F |
| July 12 | 66.6°F | July 7 | 63.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Plymouth?
Based on the data about daily sea water temperature for the last three years the warmest sea in Plymouth was noticed in August, September and July.
Monthly Sea Temperatures in Plymouth, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 63.3°F. The highest and lowest sea temperatures during the month were 64.4°F and 61.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 61.5°F. The highest and lowest sea temperatures during the month were 63.7°F and 59.2°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 64.2°F. The highest and lowest sea temperatures during the month were 66.6°F and 62.2°F.
current
weather
weather
| Plymouth |
weather in
July
July
| Plymouth |
Best time for vacation in Plymouth
Plymouth on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
Plymouth
Local time: 22:38
July 17, friday
0000
63°F
S
4 mph
4 mph
0300
63°F
W
5 mph
5 mph
0600
63°F
W
4 mph
4 mph
0900
72°F
N
5 mph
5 mph
1200
75°F
NE
7 mph
7 mph
1500
75°F
NE
12 mph
12 mph
1800
72°F
NE
8 mph
8 mph
2100
64°F
SE
7 mph
7 mph
