Hartwell Weather in September

What's the weather like in Hartwell (Georgia) in September 2025?

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

September is in the fall / autumn in Hartwell and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 16°C (62°F) is normal.

Hartwell weather averages (imperial / metric)
Daytime temperature 28.6°C 83.5°F
Nightly temperature 16.4°C 61.5°F
Average temperature 22.5°C 72.5°F
Daily sunshine 7.8 hrs
Avg rainfall 95 mm 3.7 ins
Rainy days 8 days
Sea temperature 25.6°C 78.1°F
Humidity 77%
Windspeed 10.1kph 6 mph

On average September is the 3rd driest month of the year in Hartwell with around 95mm 3.7 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 7.8 hours of sunshine per day.

September temperatures in Hartwell

Hartwell average temperature in September

September rainfall

Hartwell average rain in September

September hourly sunshine

Hartwell 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 Hartwell 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

Hartwell weather stats

Hartwell weather statistics
Hottest month: July 32.1°C 89.8°F
Driest month: October 86mm 3.4ins
Sunniest month: June 9.4hrs
Coldest month: January 11.2°C 52.2°F
Wettest month: March 147mm 5.8ins
Map showing location of Hartwell (34.35288, -82.93209) Hartwell map pin © Google

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