The temperatures in Portsmouth in March are quite cold with temperatures between 5°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Portsmouth during the month of March. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Portsmouth can expect a few days of snow in March.
Our weather forecast can give you a great sense of what weather to expect in Portsmouth in March 2025.
If you’re planning to visit Portsmouth in the near future, we highly recommend that you review the 14 day weather forecast for Portsmouth before you arrive.
Temperatures
10° / 5°
Rainy Days
6
Snowy Days
1
Dry Days
25
Rainfall
69
mm
Sun Hours
8.4
Hrs
