Hermosillo Weather in October

The climate in Hermosillo during October can be summarized as hot and dry.

October is in the fall / autumn in Hermosillo and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a warm 35°C (94°F), whilst at night 18°C (64°F) is normal.

On average October is the 6th wettest month of the year in Hermosillo with around 14mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.3 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 Hermosillo in October 2025.