Measurements:
°C
°F
Portsmouth
40°F
E 19 mph
Feels like: 30°F
Precip: 0%
World Resorts USA Portsmouth Weather May Weather in Portsmouth

Portsmouth Weather: May

Average Day Temperature: 64.0°F
Average Night Temperature: 50.5°F
Sea Water Temperature: 49.5°F
Number of Sunny Days: 12 days
Sunshine Hours: 14.1 - 15.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.9 in

Air Temperature in May, °F

Select Year: 2024 2023 2022

The highest day temperature in May 2024 was 85°F. The lowest night temperature was 40°F. The average values for day and night temperatures during May were 63.5°F и 51.6°F respectivly.

Portsmouth Water Sea Temperature in May, °F

Select Year: 2024 2023 2022

The average sea surface temperature in May 2024 for Portsmouth was 51.2°F. The maximum and minimum values were 45.0°F and 55.8°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Portsmouth is 0.9 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 8.1 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Portsmouth in May is 8.2 hours.

Best Time to Visit Portsmouth
The most sunny months:
November 15 days
September 13 days
October 12 days
The most warm months:
July 81.1 °F
August 79.6 °F
June 74.7 °F
Warmest sea temperature:
August 67.0 °F
July 64.9 °F
September 63.8 °F
The most cold months:
January 32.1 °F
February 32.9 °F
December 38.3 °F
The most rainy months:
December 3 days
July 3 days
April 3 days
The most windy months:
March 10 mph
February 9 mph
December 9 mph

Portsmouth on the Weather Map

USA Resorts:
NAME
Boston +40
Chicago +38
Hawaii +72
Honolulu +72
Houston +68
Las Vegas +44
Los Angeles +56
Maui +68
Miami +70
New York +42
San Diego +60
San Francisco +50
Sarasota +56
Tampa +54
Washington +44
24 Hours Weather Forecast
Portsmouth
Local time: 09:20
24 nov, sunday
1200 46°F
E
18 mph
1500 44°F
E
17 mph
1800 42°F
E
16 mph
2100 36°F
E
18 mph
25 nov, monday
0000 34°F
E
17 mph
0300 30°F
E
16 mph
0600 30°F
E
14 mph
0900 34°F
E
16 mph