Average monthly snow and rainfall in Portsmouth
The mean monthly precipitation over the year in Portsmouth (), including rain, snow, hail.
- 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.
Weather Forecasts for Portsmouth
clear and no rain
partly cloudy and small chance of slight rain
broken clouds and small chance of rain