Greenville Weather in September

What's the weather like in Greenville (Kentucky) in September 2025?

The climate in Greenville during September can be summarized as warm, humid and a little damp.

September is in the fall / autumn in Greenville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 15°C (58°F) is normal.

Greenville weather averages (imperial / metric)
Daytime temperature 27.9°C 82.2°F
Nightly temperature 14.5°C 58.1°F
Average temperature 21.2°C 70.2°F
Daily sunshine 8.6 hrs
Avg rainfall 87 mm 3.4 ins
Rainy days 8 days
Sea temperature 22.9°C 73.2°F
Humidity 73%
Windspeed 11.2kph 7 mph

On average September is the 3rd driest month of the year in Greenville with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 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 Greenville

Greenville average temperature in September

September rainfall

Greenville average rain in September

September hourly sunshine

Greenville 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 Greenville 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

Greenville weather stats

Greenville weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: October 74mm 2.9ins
Sunniest month: August 9.9hrs
Coldest month: January 5.2°C 41.4°F
Wettest month: March 127mm 5ins
Map showing location of Greenville (37.20115, -87.17889) Greenville map pin © Google

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