The temperatures in Cornwall in March are quite cold with temperatures between 7°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Cornwall 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.
Our weather forecast can give you a great sense of what weather to expect in Cornwall in March 2025.
If you’re planning to visit Cornwall in the near future, we highly recommend that you review the 14 day weather forecast for Cornwall before you arrive.
Temperatures
10° / 7°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
92
mm
Sun Hours
8.3
Hrs
