When is the best time to go to Portsmouth?

When is the best time to go to Portsmouth? Here's some information to help you in your decision:

  • The best months for good weather in Portsmouth are January, February, March, April, May, June, July, August, September, November and December
  • On average, it is hot all year round
  • The rainiest months are August, September and October
  • The sea temperature is suitable for swimming all year round

Annual weather in Portsmouth

For full information about the climate and weather in Portsmouth a specific month, click on the corresponding line below:

January 79°F/81°F
February 79°F/81°F
March 79°F/81°F
April 81°F/83°F
May 81°F/83°F
June 83°F/85°F
July 83°F/85°F
August 83°F/85°F
September 85°F/86°F
October 83°F/85°F
November 83°F/85°F
December 81°F/83°F

Weather and climate in Portsmouth

Portsmouth enjoys an equatorial (or tropical rainforest) climate in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Portsmouth is 83°F (ranging from 81°F in february to 86°F in september). Annual rainfall is 58.2in, with a minimum of 2.2in in february and a maximum of 8.1in in september.
  • Between january and march the climate is beautiful. The record temperature this month is 85°F and you can expect to have 2.3in of rainfall/month during this period.
  • Between the months of april and october the climate is passable, but still OK. In average, on the morning it is 85°F and, in october, 11 days of rain are expected.
  • In november the climate is favorable. The record temperature this month is 86°F and it rains in november about 5.7in.
  • In the month of december the climate is correct. the thermometer goes up to 83°F°C and, in december, 5 days of rain are expected.

Portsmouth :

Charts: temperature and rainfall in Portsmouth

In the charts below, you can see the following seasonal norms for the city of Portsmouth: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature


Other cities and places near Portsmouth

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Legend: Portsmouth other locations

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