15.05
wed
wed
Day
61°F
NE 5 mph
Precip.
0%
0%
Night
55°F
N 3 mph
Precip.
0%
0%
16.05
thu
thu
Day
61°F
W 6 mph
Precip.
64%
64%
Night
54°F
S 4 mph
Precip.
0%
0%
17.05
fri
fri
Day
63°F
W 9 mph
Precip.
0%
0%
Night
50°F
W 3 mph
Precip.
73%
73%
18.05
sat
sat
Day
59°F
W 8 mph
Precip.
0%
0%
Night
50°F
W 5 mph
Precip.
79%
79%
19.05
sun
sun
Day
54°F
W 9 mph
Precip.
0%
0%
Night
48°F
SW 7 mph
Precip.
75%
75%
20.05
mon
mon
Day
50°F
SW 14 mph
Precip.
100%
100%
Night
48°F
SW 11 mph
Precip.
43%
43%
21.05
tue
tue
Day
57°F
SW 14 mph
Precip.
0%
0%
Night
46°F
NE 6 mph
Precip.
0%
0%
22.05
wed
wed
Day
63°F
SW 11 mph
Precip.
0%
0%
Night
48°F
NE 5 mph
Precip.
0%
0%
23.05
thu
thu
Day
57°F
W 6 mph
Precip.
0%
0%
Night
52°F
NW 4 mph
Precip.
100%
100%
24.05
fri
fri
Day
54°F
W 4 mph
Precip.
100%
100%
Night
52°F
E 2 mph
Precip.
0%
0%
25.05
sat
sat
Day
64°F
NW 7 mph
Precip.
0%
0%
Night
55°F
N 5 mph
Precip.
0%
0%
26.05
sun
sun
Day
64°F
N 7 mph
Precip.
29%
29%
Night
55°F
SW 5 mph
Precip.
23%
23%
27.05
mon
mon
Day
59°F
NW 2 mph
Precip.
0%
0%
Night
57°F
N 1 mph
Precip.
100%
100%
28.05
tue
tue
Day
73°F
SE 9 mph
Precip.
0%
0%
Night
61°F
NW 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| Portsmouth |
monthly
weather
weather
| Portsmouth |
current
weather
weather
| Portsmouth |
7 days
forecast
forecast
| Portsmouth |
Sea water temperature in May, °F
Show year:
2023
2022
2021
The average sea water temperature in May of 2023 was 50.2°F. The highest and lowest sea temperatures during the month were 54.0°F and 47.3°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: 09:55
May 15, wednesday
1200
61°F
NE
5 mph
5 mph
1500
61°F
NE
3 mph
3 mph
1800
61°F
NE
2 mph
2 mph
2100
57°F
E
1 mph
1 mph
May 16, thursday
0000
55°F
N
3 mph
3 mph
0300
55°F
N
1 mph
1 mph
0600
55°F
W
2 mph
2 mph
0900
59°F
W
5 mph
5 mph
