Spartanburg Weather in September

What's the weather like in Spartanburg (South Carolina) in September 2025?

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

September is in the fall / autumn in Spartanburg and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.

Spartanburg weather averages (imperial / metric)
Daytime temperature 27.9°C 82.2°F
Nightly temperature 16.3°C 61.3°F
Average temperature 22.1°C 71.8°F
Daily sunshine 8.2 hrs
Avg rainfall 102 mm 4 ins
Rainy days 8 days
Sea temperature 25.9°C 78.6°F
Humidity 76%
Windspeed 10.1kph 6 mph

On average September is the 5th driest month of the year in Spartanburg with around 102mm 4 inches of rain making it a 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 8.2 hours of sunshine per day.

September temperatures in Spartanburg

Spartanburg average temperature in September

September rainfall

Spartanburg average rain in September

September hourly sunshine

Spartanburg 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 Spartanburg 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

Spartanburg weather stats

Spartanburg weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: November 90mm 3.5ins
Sunniest month: April 9.4hrs
Coldest month: January 10.3°C 50.5°F
Wettest month: March 135mm 5.3ins
Map showing location of Spartanburg (34.94957, -81.93205) Spartanburg map pin © Google

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