Camp Pendleton South Weather in September

The climate in Camp Pendleton South during September can be summarized as warm and very dry.

September is in the fall / autumn in Camp Pendleton South and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 17°C (62°F) is normal.

On average September is the 5th driest month of the year in Camp Pendleton South with around 6mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.5 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 Camp Pendleton South in September 2025.