Weather in Portsmouth in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 72.2°F | 78.0°F | 76.6°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 60.0°F | 66.3°F | 64.7°F | |||
| Sea water temperature: | ||||||
| Sea water temperature: | 57.5°F | 63.4°F | 65.4°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 10 days | 10 days | 9 days | |||
| Day length: | ||||||
| Day length: | 15.2 - 15.4 h. | 14.5 - 15.3 h. | 13.2 - 14.5 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 2 days | 3 days | 2 days | |||
| Precipitation totals: | ||||||
| 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
Sea water temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
weather in
winter
winter
| Portsmouth |
weather in
spring
spring
| Portsmouth |
weather in
summer
summer
| Portsmouth |
weather in
autumn
autumn
| Portsmouth |
Wind speed, mph
Average sunny hours
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
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 04:38
December 22, sunday
0600
12°F
SE
12 mph
12 mph
0900
12°F
SE
10 mph
10 mph
1200
19°F
SE
8 mph
8 mph
1500
23°F
SE
8 mph
8 mph
1800
23°F
SE
6 mph
6 mph
2100
18°F
SE
6 mph
6 mph
December 23, monday
0000
14°F
SE
5 mph
5 mph
0300
14°F
SE
4 mph
4 mph
