Downey Weather in September

What's the weather like in Downey (California) in September 2024?

The climate in Downey during September can be summarized as warm and very dry.

September is in the fall / autumn in Downey and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (83°F), whilst at night 17°C (62°F) is normal.

Downey weather averages (imperial / metric)
Daytime temperature 28.3°C 82.9°F
Nightly temperature 16.6°C 61.8°F
Average temperature 22.4°C 72.3°F
Daily sunshine 9.9 hrs
Avg rainfall 6 mm 0.3 ins
Rainy days 2 days
Sea temperature 19.6°C 67.2°F
Humidity 68%
Windspeed 11.9kph 7 mph

On average September is the 6th driest month of the year in Downey with around 6mm 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 Downey

Downey average temperature in September

September rainfall

Downey average rain in September

September hourly sunshine

Downey 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 Downey in September 2024.