The weather in Sitges in September is hot. The average temperatures are between 20°C and 24°C.
You can expect about 3 to 8 days of rain in Sitges during the month of September. 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 Sitges in September 2026.
If you’re planning to visit Sitges in the near future, we highly recommend that you review the 14 day weather forecast for Sitges before you arrive.
Temperatures
24° / 20°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
113
mm
Sun Hours
11.4
Hrs
