The temperatures in Castelldefels in March are usually low and can range between 10°C and 15°C.
You can expect about 3 to 8 days of rain in Castelldefels 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 Castelldefels in March 2026.
If you’re planning to visit Castelldefels in the near future, we highly recommend that you review the 14 day weather forecast for Castelldefels before you arrive.
Temperatures
15° / 10°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
56
mm
Sun Hours
7.7
Hrs
