Weather in Portsmouth: May
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Average day temperature: | 62.8°F |
| Average night temperature: | 50.2°F | |
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Sea water temperature: | 49.1°F |
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Number of sunny days: | 13 days |
| Day length: | 14.1 - 15.1 hours | |
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Number of rainy days: | 3 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:
2023
2022
2021
The highest day temperature during May of 2023 was 82°F. At the same time the lowest night temperature was 39°F. Day and night temperature averages during May were 64.2°F and 49.5°F.
Sea water temperature in Portsmouth 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.
Sunny, partly cloudy and cloudy days
Mostly all days in May are sunny but cloudy days are also possible.
Precipitation total in May, in.
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
The average wind speed value in May is 8.5 mph
Average sunny hours
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: 8.7.
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 23:49
May 15, wednesday
0000
59°F
NE
7 mph
7 mph
0300
55°F
NE
5 mph
5 mph
0600
57°F
NE
5 mph
5 mph
0900
59°F
E
6 mph
6 mph
1200
59°F
NE
6 mph
6 mph
1500
61°F
NE
2 mph
2 mph
1800
59°F
NW
2 mph
2 mph
2100
57°F
N
1 mph
1 mph
