Compton Weather in September

What's the weather like in Compton (California) in September 2025?

The climate in Compton during September can be summarized as warm, humid and very dry.

September is in the fall / autumn in Compton and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 18°C (64°F) is normal.

Compton weather averages (imperial / metric)
Daytime temperature 27.3°C 81.1°F
Nightly temperature 17.6°C 63.6°F
Average temperature 22.4°C 72.3°F
Daily sunshine 9.9 hrs
Avg rainfall 8 mm 0.3 ins
Rainy days 2 days
Sea temperature 19.6°C 67.2°F
Humidity 70%
Windspeed 11.9kph 7 mph

On average September is the 6th driest month of the year in Compton with around 8mm 0.3 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

September temperatures in Compton

Compton average temperature in September

September rainfall

Compton average rain in September

September hourly sunshine

Compton average rain in September

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 Compton in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Compton weather stats

Compton weather statistics
Hottest month: August 27.7°C 81.9°F
Driest month: July 1mm 0ins
Sunniest month: August 11.7hrs
Coldest month: January 19.2°C 66.6°F
Wettest month: January 66mm 2.6ins
Map showing location of Compton (33.89585, -118.22007) Compton map pin © Google

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