10.01
sat
sat
Day
43°F
SE 5 mph
Precip.
0%
0%
Night
36°F
W 11 mph
Precip.
100%
100%
11.01
sun
sun
Day
36°F
S 3 mph
Precip.
0%
0%
Night
30°F
E 16 mph
Precip.
0%
0%
12.01
mon
mon
Day
28°F
E 17 mph
Precip.
0%
0%
Night
32°F
NE 9 mph
Precip.
0%
0%
13.01
tue
tue
Day
37°F
E 11 mph
Precip.
0%
0%
Night
36°F
N 13 mph
Precip.
0%
0%
14.01
wed
wed
Day
43°F
N 9 mph
Precip.
30%
30%
Night
37°F
NE 7 mph
Precip.
42%
42%
15.01
thu
thu
Day
41°F
E 2 mph
Precip.
0%
0%
Night
36°F
SW 11 mph
Precip.
100%
100%
16.01
fri
fri
Day
27°F
S 19 mph
Precip.
100%
100%
Night
27°F
SE 12 mph
Precip.
100%
100%
17.01
sat
sat
Day
28°F
E 9 mph
Precip.
43%
43%
Night
21°F
E 8 mph
Precip.
0%
0%
18.01
sun
sun
Day
28°F
E 11 mph
Precip.
76%
76%
Night
21°F
E 14 mph
Precip.
0%
0%
19.01
mon
mon
Day
16°F
SE 12 mph
Precip.
0%
0%
Night
9°F
SE 4 mph
Precip.
0%
0%
20.01
tue
tue
Day
18°F
SE 4 mph
Precip.
0%
0%
Night
12°F
SE 5 mph
Precip.
0%
0%
21.01
wed
wed
Day
27°F
SE 6 mph
Precip.
0%
0%
Night
19°F
E 6 mph
Precip.
0%
0%
22.01
thu
thu
Day
30°F
E 2 mph
Precip.
0%
0%
Night
25°F
SW 4 mph
Precip.
0%
0%
23.01
fri
fri
Day
28°F
SW 19 mph
Precip.
100%
100%
Night
21°F
S 17 mph
Precip.
100%
100%
sea water
temperature
temperature
| Portsmouth |
monthly
weather
weather
| Portsmouth |
current
weather
weather
| Portsmouth |
7 days
forecast
forecast
| Portsmouth |
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 41.0°F. The highest and lowest sea temperatures during the month were 42.8°F and 39.4°F.
Air temperature in Portsmouth, °F
Precipitation total in Portsmouth, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 19:00
January 10, saturday
2100
37°F
W
8 mph
8 mph
January 11, sunday
0000
36°F
W
11 mph
11 mph
0300
36°F
SW
9 mph
9 mph
0600
37°F
S
6 mph
6 mph
0900
37°F
SW
6 mph
6 mph
1200
36°F
S
3 mph
3 mph
1500
34°F
SE
6 mph
6 mph
1800
34°F
E
12 mph
12 mph
