Current sea water temperature:
+69.4°F
| Minimum sea water temperature in August: | 74.7°F |
| Maximum sea water temperature in August: | 63.3°F |
| Average sea water temperature in August: | 67.9°F |
| more information | |
14 days
forecast
forecast
| Plymouth |
monthly
weather
weather
| Plymouth |
Sea water temperature for the last 10 days:
| August 10 | 69.4°F | August 5 | 66.6°F |
| August 9 | 70.9°F | August 4 | 69.8°F |
| August 8 | 70.3°F | August 3 | 66.4°F |
| August 7 | 67.1°F | August 2 | 65.7°F |
| August 6 | 66.2°F | August 1 | 65.5°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, July and September.
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 67.4°F. The highest and lowest sea temperatures during the month were 70.9°F and 64.9°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 67.0°F. The highest and lowest sea temperatures during the month were 69.8°F and 63.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 64.5°F. The highest and lowest sea temperatures during the month were 68.0°F and 61.9°F.
current
weather
weather
| Plymouth |
weather in
August
August
| Plymouth |
Best time for vacation in Plymouth
Plymouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Plymouth
Local time: 12:23
August 10, monday
1500
90°F
N
6 mph
6 mph
1800
82°F
NE
12 mph
12 mph
2100
75°F
NE
10 mph
10 mph
August 11, tuesday
0000
73°F
NE
6 mph
6 mph
0300
70°F
E
5 mph
5 mph
0600
70°F
E
6 mph
6 mph
0900
77°F
E
9 mph
9 mph
1200
77°F
NE
7 mph
7 mph
