Puerto Peñasco Weather in September

The climate in Puerto Peñasco during September can be summarized as very hot and dry.

September is in the fall / autumn in Puerto Peñasco and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a hot 38°C (101°F), whilst at night 23°C (73°F) is normal.

On average September is the 2nd wettest month of the year in Puerto Peñasco with around 17mm 0.7 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 11.1 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 Puerto Peñasco in September 2025.