Greeneville Weather in September

What's the weather like in Greeneville (Tennessee) in September 2025?

The climate in Greeneville during September can be summarized as warm and reasonably dry.

September is in the fall / autumn in Greeneville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (79°F), whilst at night 12°C (54°F) is normal.

Greeneville weather averages (imperial / metric)
Daytime temperature 26°C 78.7°F
Nightly temperature 12.3°C 54.1°F
Average temperature 19.1°C 66.4°F
Daily sunshine 7.6 hrs
Avg rainfall 77 mm 3 ins
Rainy days 9 days
Sea temperature 24.2°C 75.6°F
Humidity 79%
Windspeed 9.7kph 6 mph

On average September is the 3rd driest month of the year in Greeneville with around 77mm 3 inches of rain making it a reasonably dry 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 7.6 hours of sunshine per day.

September temperatures in Greeneville

Greeneville average temperature in September

September rainfall

Greeneville average rain in September

September hourly sunshine

Greeneville 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 Greeneville 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

Greeneville weather stats

Greeneville weather statistics
Hottest month: July 28.9°C 84°F
Driest month: October 64mm 2.5ins
Sunniest month: April 8.7hrs
Coldest month: January 6.6°C 43.9°F
Wettest month: July 107mm 4.2ins
Map showing location of Greeneville (36.16316, -82.83099) Greeneville map pin © Google

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