21.07
tue
tue
Day
75°F
NW 12 mph
Precip.
9%
9%
Night
72°F
N 23 mph
Precip.
80%
80%
22.07
wed
wed
Day
75°F
NE 13 mph
Precip.
23%
23%
Night
68°F
SE 6 mph
Precip.
35%
35%
23.07
thu
thu
Day
73°F
SE 11 mph
Precip.
1%
1%
Night
63°F
S 4 mph
Precip.
6%
6%
24.07
fri
fri
Day
75°F
N 6 mph
Precip.
1%
1%
Night
64°F
NW 4 mph
Precip.
14%
14%
25.07
sat
sat
Day
75°F
W 9 mph
Precip.
1%
1%
Night
64°F
NE 5 mph
Precip.
8%
8%
26.07
sun
sun
Day
75°F
N 6 mph
Precip.
2%
2%
Night
64°F
NE 6 mph
Precip.
7%
7%
27.07
mon
mon
Day
79°F
NE 15 mph
Precip.
5%
5%
Night
68°F
N 9 mph
Precip.
94%
94%
sea water
temperature
temperature
| Jamestown |
monthly
weather
weather
| Jamestown |
current
weather
weather
| Jamestown |
14 days
forecast
forecast
| Jamestown |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 71.5°F. The highest and lowest sea temperatures during the month were 74.7°F and 68.7°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.7°F. The highest and lowest sea temperatures during the month were 74.1°F and 67.1°F.
Air temperature in Jamestown, °F
Precipitation total in Jamestown, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Jamestown
Jamestown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Jamestown
Local time: 11:51
July 21, tuesday
1200
75°F
NW
12 mph
12 mph
1500
73°F
NW
14 mph
14 mph
1800
70°F
NW
14 mph
14 mph
2100
70°F
N
14 mph
14 mph
July 22, wednesday
0000
72°F
N
23 mph
23 mph
0300
70°F
NE
14 mph
14 mph
0600
70°F
NE
11 mph
11 mph
0900
73°F
NE
11 mph
11 mph
