Castaños Weather in September

The climate in Castaños during September can be summarized as hot and reasonably dry.

September is in the fall / autumn in Castaños and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 31°C (87°F), whilst at night 18°C (64°F) is normal.

On average September is the wettest month of the year in Castaños with around 62mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.3 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 Castaños in September 2025.