Richmond Weather in September

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

The climate in Richmond during September can be summarized as mild and very dry.

September is in the fall / autumn in Richmond and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 13°C (55°F) is normal.

Richmond weather averages (imperial / metric)
Daytime temperature 22.6°C 72.7°F
Nightly temperature 12.6°C 54.7°F
Average temperature 17.6°C 63.7°F
Daily sunshine 10.1 hrs
Avg rainfall 9 mm 0.4 ins
Rainy days 2 days
Sea temperature 14.4°C 57.9°F
Humidity 69%
Windspeed 16.2kph 10 mph

On average September is the 4th driest month of the year in Richmond with around 9mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.1 hours of sunshine per day.

September temperatures in Richmond

Richmond average temperature in September

September rainfall

Richmond average rain in September

September hourly sunshine

Richmond 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 Richmond in September 2024.