Weather in Portsmouth in Summer
| June | July | August | ||||
| Average day temperature: | 72.2°F | 78.0°F | 76.6°F | |||
| Average night temperature: | 60.0°F | 66.3°F | 64.7°F | |||
| Sea water temperature: | 57.5°F | 63.4°F | 65.4°F | |||
| Number of sunny days: | 10 days | 10 days | 9 days | |||
| Day length: | 15.2 - 15.4 h. | 14.5 - 15.3 h. | 13.2 - 14.5 h. | |||
| Number of rainy days: | 2 days | 3 days | 2 days | |||
| Precipitation totals: | 1.0 in. | 1.8 in. | 1.3 in. | |||
current
weather
weather
| Portsmouth |
monthly
weather
weather
| Portsmouth |
sea water
temperature
temperature
| Portsmouth |
14 days
forecast
forecast
| Portsmouth |
Day & Night air temperature, °F
June
July
August
0
13
26
39
52
65
78
91
104
76.6
78.0
72.2
64.7
66.3
60.0
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
11
22
33
44
55
66
77
88
65.4
63.4
57.5
Precipitation total, in.
June
July
August
0.0
0.3
0.6
0.9
1.3
1.6
1.9
2.2
1.3
1.8
1
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
9
10
10
13
11
10
9
10
10
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| Portsmouth |
weather in
spring
spring
| Portsmouth |
weather in
summer
summer
| Portsmouth |
weather in
autumn
autumn
| Portsmouth |
Wind speed, mph
June
July
August
0.0
1.2
2.4
3.6
4.9
6.1
7.3
8.5
6.5
6.7
7.1
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
7.6
8
7.9
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Portsmouth
Portsmouth on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 02:26
April 17, thursday
0300
37°F
E
12 mph
12 mph
0600
34°F
E
11 mph
11 mph
0900
39°F
SE
14 mph
14 mph
1200
52°F
SE
16 mph
16 mph
1500
55°F
SE
15 mph
15 mph
1800
54°F
SE
12 mph
12 mph
2100
46°F
SE
10 mph
10 mph
April 18, friday
0000
43°F
E
6 mph
6 mph
