Current sea water temperature:
+63.1°F
| Minimum sea water temperature in September: | 65.5°F |
| Maximum sea water temperature in September: | 58.8°F |
| Average sea water temperature in September: | 61.4°F |
| more information | |
14 days
forecast
forecast
| Plymouth |
monthly
weather
weather
| Plymouth |
Sea water temperature for the last 10 days:
| September 15 | 63.1°F | September 10 | 64.2°F |
| September 14 | 63.1°F | September 9 | 64.9°F |
| September 13 | 63.3°F | September 8 | 65.1°F |
| September 12 | 63.5°F | September 7 | 65.1°F |
| September 11 | 63.7°F | September 6 | 65.3°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 65.3°F. The highest and lowest sea temperatures during the month were 66.6°F and 63.5°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 64.5°F. The highest and lowest sea temperatures during the month were 65.5°F and 63.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 65.0°F. The highest and lowest sea temperatures during the month were 66.6°F and 62.2°F.
current
weather
weather
| Plymouth |
weather in
September
September
| Plymouth |
Best time for vacation in Plymouth
Plymouth on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
Plymouth
Local time: 03:51
September 16, wednesday
0600
52°F
SE
6 mph
6 mph
0900
55°F
SE
11 mph
11 mph
1200
57°F
SE
9 mph
9 mph
1500
61°F
SE
12 mph
12 mph
1800
57°F
E
11 mph
11 mph
2100
55°F
E
6 mph
6 mph
September 17, thursday
0000
54°F
NE
7 mph
7 mph
0300
57°F
E
11 mph
11 mph
