Virginia Weather in September

What's the weather like in Virginia (Illinois) in September 2025?

The climate in Virginia during September can be summarized as warm and a little damp.

September is in the fall / autumn in Virginia and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (78°F), whilst at night 12°C (54°F) is normal.

Virginia weather averages (imperial / metric)
Daytime temperature 25.6°C 78°F
Nightly temperature 12.3°C 54.1°F
Average temperature 18.9°C 66°F
Daily sunshine 8.6 hrs
Avg rainfall 98 mm 3.8 ins
Rainy days 9 days
Sea temperature 20.4°C 68.7°F
Humidity 72%
Windspeed 14.4kph 9 mph

On average September is the 5th wettest month of the year in Virginia with around 98mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.6 hours of sunshine per day.

September temperatures in Virginia

Virginia average temperature in September

September rainfall

Virginia average rain in September

September hourly sunshine

Virginia 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 Virginia 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

Virginia weather stats

Virginia weather statistics
Hottest month: July 30.1°C 86.2°F
Driest month: January 37mm 1.5ins
Sunniest month: July 10.8hrs
Coldest month: January 0.1°C 32.2°F
Wettest month: May 116mm 4.6ins
Map showing location of Virginia (39.95116, -90.21234) Virginia map pin © Google

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