Sparta Weather in September

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

The climate in Sparta during September can be summarized as warm, humid and damp.

September is in the fall / autumn in Sparta and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 14°C (58°F) is normal.

Sparta weather averages (imperial / metric)
Daytime temperature 26.4°C 79.4°F
Nightly temperature 14.3°C 57.7°F
Average temperature 20.3°C 68.5°F
Daily sunshine 8 hrs
Avg rainfall 101 mm 4 ins
Rainy days 9 days
Sea temperature 24.7°C 76.5°F
Humidity 76%
Windspeed 10.1kph 6 mph

On average September is the 3rd driest month of the year in Sparta with around 101mm 4 inches of rain making it a 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 hours of sunshine per day.

September temperatures in Sparta

Sparta average temperature in September

September rainfall

Sparta average rain in September

September hourly sunshine

Sparta 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 Sparta 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

Sparta weather stats

Sparta weather statistics
Hottest month: July 29.7°C 85.5°F
Driest month: October 83mm 3.3ins
Sunniest month: June 9.7hrs
Coldest month: January 6.7°C 44.1°F
Wettest month: March 150mm 5.9ins
Map showing location of Sparta (35.9259, -85.46414) Sparta map pin © Google

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