World Resorts USA Portsmouth Weather

Winter weather in Portsmouth

Weather in Portsmouth in Winter

December January February
Average day temperature:
Average day temperature: 38.7°F 33.2°F 34.2°F
Average night temperature:
Average night temperature: 32.5°F 26.7°F 26.3°F
Sea water temperature:
Sea water temperature: 45.9°F 41.7°F 39.1°F
Number of sunny days:
Number of sunny days: 11 days 10 days 9 days
Day length:
Day length: 9.0 - 9.2 h. 9.1 - 9.9 h. 10.0 - 11.2 h.
Number of rainy days:
Number of rainy days: 3 days 2 days 1 day
Precipitation totals:
Precipitation totals: 1.5 in. 1.2 in. 0.9 in.

Day & Night air temperature, °F

Sea water temperature, °F

Precipitation total, in.

Sunny, partly cloudy and cloudy days
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

Sunniest months:
November 16 days
October 14 days
September 13 days
Warmest months:
July 78.5 °F
August 77.0 °F
June 72.7 °F
Warmest sea temp:
August 65.0 °F
July 63.3 °F
September 62.2 °F
Coldest months:
January 33.2 °F
February 34.2 °F
December 38.7 °F
Rainiest months:
July 3 days
December 3 days
April 3 days
Windiest months:
March 9.7 mph
January 9.7 mph
February 9.6 mph

Portsmouth on a weather map

Portsmouth
+12°F
SE 14 mph
Feels like: -2°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+23°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Portsmouth
Local time: 01:20
December 05, friday
0300
10°F
SE
11 mph
0600
9°F
E
6 mph
0900
12°F
E
6 mph
1200
19°F
NE
7 mph
1500
25°F
NE
10 mph
1800
25°F
NE
6 mph
2100
21°F
NE
6 mph
December 06, saturday
0000
19°F
NE
6 mph
Units of measurement: °C / °F