Weather in Portsmouth: May
 |
Average day temperature: | 62.6°F |
| Average night temperature: | 50.5°F | |
 |
Sea water temperature: | 49.6°F |
 |
Number of sunny days: | 12 days |
| Day length: | 14.1 - 15.1 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Portsmouth |
sea water
temperature
temperature
| Portsmouth |
Air temperature in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
| Day temperature | Night temperature |
The highest day temperature during May of 2024 was 81°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during May were 62.1°F and 51.5°F.
Sea water temperature in Portsmouth in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
40
43
46
49
52
55
58
61
The average sea water temperature in May of 2024 was 51.0°F. The highest and lowest sea temperatures during the month were 55.2°F and 45.5°F.
Sunny, partly cloudy and cloudy days
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
39%
32%
29%
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.6
0.9
1.3
1.6
1.9
2.2
1.5
1.2
1.3
1.8
1.5
1.2
1.2
1.5
1.2
1.3
1.8
1.5
1.2
1.2
Precipitation total value in Portsmouth in May is 0.9 in. Other months of the year show relatively similar values.
Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.3
5.0
6.6
8.3
10.0
11.6
9.3
9.3
7.6
7.2
6.5
6.7
7.1
9.1
9.7
9.6
9.7
9.3
9.3
7.6
7.2
6.5
6.7
7.1
8.1
9.1
9.7
9.6
9.7
The average wind speed value in May is 8.1 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.8
4.2
5.6
7.1
8.5
9.9
11.3
4.6
6.3
6.1
7.1
7.6
8.0
7.9
5.9
6.0
5.3
4.7
4.6
6.3
6.1
7.1
7.6
8.0
7.9
8.2
5.9
6.0
5.3
4.7
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.2.
Best time for vacation in Portsmouth
Portsmouth on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 00:08
April 22, tuesday
0300
45°F
NW
4 mph
4 mph
0600
43°F
NW
3 mph
3 mph
0900
48°F
SE
1 mph
1 mph
1200
61°F
E
7 mph
7 mph
1500
70°F
E
12 mph
12 mph
1800
68°F
E
11 mph
11 mph
2100
57°F
E
8 mph
8 mph
April 23, wednesday
0000
50°F
E
10 mph
10 mph
