Castellar del Vallès Weather in September

The climate in Castellar del Vallès during September can be summarized as warm and reasonably dry.

September is in the fall / autumn in Castellar del Vallès and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 16°C (60°F) is normal.

On average September is the wettest month of the year in Castellar del Vallès with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.2 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Castellar del Vallès in September 2024.