Weather in September 2025

Chattanooga weather in September 2025

The temperatures in Chattanooga in September are comfortable with low of 16°C and and high up to 28°C.

You can expect about 3 to 8 days of rain in Chattanooga during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Chattanooga in September 2025.

If you’re planning to visit Chattanooga in the near future, we highly recommend that you review the 14 day weather forecast for Chattanooga before you arrive.

Temperatures
Temperatures
28° / 16°
Rainy Days
Rainy Days
5
Snowy Days
Snowy Days
0
Dry Days
Dry Days
25
Rainfall
Rainfall
160
mm
10.3
Sun Hours
10.3
Hrs

Chattanooga annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 8° / 0° 7 20 4 168 mm
Awful
February 11° / 2° 9 15 4 180 mm
Awful
March 16° / 6° 10 20 1 186 mm
Ok
April 21° / 9° 8 22 0 185 mm
Ok
May 26° / 14° 8 23 0 164 mm
Good
June 30° / 18° 10 20 0 163 mm
Ok
July 32° / 19° 10 21 0 208 mm
Ok
August 31° / 19° 8 23 0 159 mm
Ok
September 28° / 16° 5 25 0 160 mm
Perfect
October 22° / 10° 5 26 0 140 mm
Good
November 15° / 5° 6 24 1 137 mm
Good
December 11° / 3° 8 21 2 187 mm
Awful
Temperatures in Chattanooga in September
Rain in Chattanooga in September

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Weather in Chattanooga in September - FAQ

What is the average temperature in Chattanooga in September?
The average temperature in Chattanooga in September is 16/28° C.
What is the chance of rain in Chattanooga in September?
On average, there are 5 rainy days in Chattanooga during September.
Weather wise, is September a good time to visit Chattanooga?
The weather in Chattanooga in September is perfect.
Can it snow in Chattanooga in September?
On average, there are 0 snowy days in Chattanooga in September.
More about the weather in Chattanooga