The temperatures in Boulogne Sur Mer 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 Boulogne Sur Mer 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 Boulogne Sur Mer can expect a few days of snow in March.
Our weather forecast can give you a great sense of what weather to expect in Boulogne Sur Mer in March 2026.
If you’re planning to visit Boulogne Sur Mer in the near future, we highly recommend that you review the 14 day weather forecast for Boulogne Sur Mer before you arrive.
Temperatures
10° / 5°
Rainy Days
7
Snowy Days
1
Dry Days
23
Rainfall
83
mm
Sun Hours
8.2
Hrs
