Portsmouth Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Portsmouth (). The numbers are calculated over a 30-year period to provide a reliable average.

A lot of rain (rainy season) falls in the months: August, September, October and November.
On average, October is the wettest month with 137 mm of precipitation.
On average, March is the driest month with 33 mm of precipitation.
The average amount of annual precipitation is 973 mm.

Current rainfall in Portsmouth

Thu Nov 21

31°C | 21°C

7 km/h

2.9 mm

broken clouds and thunder

hourly forecast

Fri Nov 22

31°C | 22°C

11 km/h

2 mm

partly cloudy and thunder

hourly forecast

Sat Nov 23

32°C | 23°C

18 km/h

4.1 mm

broken clouds and thunder

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in Portsmouth.

Our site offers climate and forecast data for every country in the world. Are you going to Dominica? On this website you can find historical weather averages for many cities in Dominica. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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