18.03
wed
wed
Day
36°F
S 8 mph
Precip.
0%
0%
Night
30°F
N 4 mph
Precip.
0%
0%
19.03
thu
thu
Day
37°F
N 8 mph
Precip.
0%
0%
Night
37°F
NE 7 mph
Precip.
0%
0%
20.03
fri
fri
Day
43°F
NE 9 mph
Precip.
0%
0%
Night
41°F
N 16 mph
Precip.
100%
100%
21.03
sat
sat
Day
46°F
S 1 mph
Precip.
0%
0%
Night
41°F
W 4 mph
Precip.
0%
0%
22.03
sun
sun
Day
50°F
NE 11 mph
Precip.
0%
0%
Night
43°F
SW 6 mph
Precip.
100%
100%
23.03
mon
mon
Day
34°F
SW 15 mph
Precip.
100%
100%
Night
30°F
S 11 mph
Precip.
0%
0%
24.03
tue
tue
Day
34°F
S 14 mph
Precip.
0%
0%
Night
32°F
NE 7 mph
Precip.
0%
0%
sea water
temperature
temperature
| Jamestown |
monthly
weather
weather
| Jamestown |
current
weather
weather
| Jamestown |
14 days
forecast
forecast
| Jamestown |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 36.5°F. The highest and lowest sea temperatures during the month were 38.7°F and 33.8°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 45.3°F. The highest and lowest sea temperatures during the month were 49.6°F and 43.0°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: 23:17
March 19, thursday
0000
30°F
N
4 mph
4 mph
0300
28°F
N
2 mph
2 mph
0600
30°F
NW
3 mph
3 mph
0900
34°F
NW
6 mph
6 mph
1200
37°F
N
8 mph
8 mph
1500
39°F
N
9 mph
9 mph
1800
37°F
N
9 mph
9 mph
2100
37°F
N
7 mph
7 mph
