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Portsmouth weather in July

Weather in Portsmouth: July

Average day temperature: 78.0°F
Average night temperature: 66.3°F
Sea water temperature: 63.4°F
Number of sunny days: 10 days
Day length: 14.5 - 15.3 hours
Number of rainy days: 3 days
Precipitation totals: 1.8 in.

Air temperature in July, °F

Show year:
2024
2023
2022
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0
15
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45
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75
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105
120
Day temperature   
Night temperature

The highest day temperature during July of 2024 was 88°F. At the same time the lowest night temperature was 59°F. Day and night temperature averages during July were 79.1°F and 65.9°F.

Sea water temperature in Portsmouth in July, °F

Show year:
2024
2023
2022
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3
5
7
9
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19
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25
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53
56
59
62
65
68
71
74

The average sea water temperature in July of 2024 was 61.1°F. The highest and lowest sea temperatures during the month were 64.8°F and 57.0°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
32%
35%
32%

Number of sunny, partly cloudy and cloudy days in July is almost equal.

Precipitation total in July, 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
1.5
1.4
1.2
1.5
1.2
1.3
1.8
1.5
1.4
1.2

Precipitation total value in Portsmouth in July is 1.8 in. Other months of the year show relatively similar values.

Wind speed in July, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.4
5.2
6.9
8.6
10.3
12.0
9.3
9.3
7.6
7.2
6.5
7.1
8.1
9.1
10.0
9.6
9.7
9.3
9.3
7.6
7.2
6.5
6.7
7.1
8.1
9.1
10.0
9.6
9.7

The average wind speed value in July is 6.7 mph It makes July one of the least windy months of the year.

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
7.9
8.2
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 July is: 8.0.

Best time for vacation in Portsmouth

Sunniest months:
November 15 days
September 13 days
October 12 days
Warmest months:
July 78.0 °F
August 76.6 °F
June 72.2 °F
Warmest sea temp:
August 65.3 °F
July 63.4 °F
September 62.4 °F
Coldest months:
January 33.2 °F
February 34.2 °F
December 38.7 °F
Rainiest months:
December 3 days
July 3 days
April 3 days
Windiest months:
March 10.0 mph
January 9.7 mph
February 9.6 mph

Portsmouth on a weather map

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24 Hours Forecast
Portsmouth
Local time: 11:49
March 04, tuesday
1200
41°F
NE
12 mph
1500
46°F
NE
11 mph
1800
45°F
NE
11 mph
2100
39°F
NE
10 mph
March 05, wednesday
0000
37°F
NE
9 mph
0300
37°F
NE
8 mph
0600
37°F
NE
9 mph
0900
41°F
N
9 mph
Units of measurement: °C / °F