Current sea water temperature:
+51.3°F
| Minimum sea water temperature in April: | 53.6°F |
| Maximum sea water temperature in April: | 45.3°F |
| Average sea water temperature in April: | 50.3°F |
| more information | |
14 days
forecast
forecast
| Plymouth |
monthly
weather
weather
| Plymouth |
Sea water temperature for the last 10 days:
| April 6 | 51.3°F | April 1 | 50.7°F |
| April 5 | 52.0°F | March 31 | 50.0°F |
| April 4 | 51.4°F | March 30 | 50.2°F |
| April 3 | 51.4°F | March 29 | 50.7°F |
| April 2 | 50.9°F | March 28 | 50.2°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 62.3°F. The highest and lowest sea temperatures during the month were 63.9°F and 59.7°F.
current
weather
weather
| Plymouth |
weather in
April
April
| Plymouth |
Best time for vacation in Plymouth
Plymouth on a weather map
Places in United Kingdom:
Name
°F
24 Hours Forecast
Plymouth
Local time: 18:16
April 06, monday
2100

48°F
W
19 mph
19 mph
April 07, tuesday
0000

50°F
W
18 mph
18 mph
0300

50°F
W
20 mph
20 mph
0600

50°F
W
20 mph
20 mph
0900

54°F
W
22 mph
22 mph
1200

57°F
W
22 mph
22 mph
1500

57°F
W
21 mph
21 mph
1800

55°F
W
19 mph
19 mph



























