The weather in Castelldefels in July is hot. The average temperatures are between 22°C and 28°C.
You can expect about 3 to 8 days of rain in Castelldefels during the month of July. 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 July 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
28° / 22°
Rainy Days
4
Snowy Days
0
Dry Days
28
Rainfall
28
mm
Sun Hours
9.9
Hrs
