21.07
tue
tue
Day
82°F
N 12 mph
Precip.
2%
2%
Night
72°F
N 19 mph
Precip.
91%
91%
22.07
wed
wed
Day
79°F
NE 13 mph
Precip.
41%
41%
Night
68°F
SE 4 mph
Precip.
25%
25%
23.07
thu
thu
Day
75°F
E 11 mph
Precip.
1%
1%
Night
63°F
NW 1 mph
Precip.
7%
7%
24.07
fri
fri
Day
77°F
NW 3 mph
Precip.
1%
1%
Night
63°F
N 3 mph
Precip.
8%
8%
25.07
sat
sat
Day
75°F
W 8 mph
Precip.
1%
1%
Night
63°F
NE 6 mph
Precip.
7%
7%
26.07
sun
sun
Day
79°F
NW 7 mph
Precip.
1%
1%
Night
63°F
NE 6 mph
Precip.
6%
6%
27.07
mon
mon
Day
84°F
NE 14 mph
Precip.
4%
4%
Night
70°F
N 9 mph
Precip.
84%
84%
sea water
temperature
temperature
| Plymouth |
monthly
weather
weather
| Plymouth |
current
weather
weather
| Plymouth |
14 days
forecast
forecast
| Plymouth |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 67.3°F. The highest and lowest sea temperatures during the month were 69.8°F and 63.1°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.
Air temperature in Plymouth, °F
Precipitation total in Plymouth, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Plymouth
Plymouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Plymouth
Local time: 09:25
July 21, tuesday
1200
82°F
N
12 mph
12 mph
1500
82°F
N
14 mph
14 mph
1800
75°F
NW
12 mph
12 mph
2100
72°F
N
12 mph
12 mph
July 22, wednesday
0000
72°F
N
19 mph
19 mph
0300
70°F
NE
14 mph
14 mph
0600
70°F
NE
10 mph
10 mph
0900
75°F
NE
12 mph
12 mph
