Chattanooga (TN)
September
Weather in Chattanooga, Tennessee for September 2027
Your guide to Chattanooga weather in September - trends and predictions
In general, the average temperature in Chattanooga at the beginning of September is 29.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.5 °C by the end of September.
Chattanooga experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 210.7 mm.
Is September a good time to visit Chattanooga? check out the best time to travel to Chattanooga page.
✨ Is September a good time to visit Chattanooga? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
28°/18°
Temperatures
10 km/h
Avg max wind
68 %
Avg humidity
Chattanooga Weather September
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Temperatures trend during September in Chattanooga
See the weather trend as well as the moving average line
September weather in Chattanooga day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 29° /20° | 1.2 mm | 7 | |
| Sept. 2 |  Overcast | 31° /20° | 0 mm | 7 | |
| Sept. 3 |  Light rain | 30° /19° | 5 mm | 7 | |
| Sept. 4 | Patchy rain possible | 32° /20° | 2.1 mm | 7 | |
| Sept. 5 | Patchy rain possible | 31° /21° | 1.3 mm | 8 | |
| Sept. 6 |  Mist | 30° /19° | 0.9 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 27° /18° | 0 mm | 5 | |
| Sept. 8 | Overcast | 27° /17° | 0 mm | 6 | |
| Sept. 9 | Thundery outbreaks possible | 28° /18° | 0.1 mm | 7 | |
| Sept. 10 |  Partly cloudy | 29° /17° | 0.5 mm | 7 | |
| Sept. 11 | Fog | 30° /18° | 0.1 mm | 7 | |
| Sept. 12 |  Moderate rain | 27° /19° | 10.6 mm | 5 | |
| Sept. 13 | Light rain | 28° /19° | 4.3 mm | 6 | |
| Sept. 14 | Light rain | 26° /18° | 6.4 mm | 7 | |
| Sept. 15 | Patchy rain possible | 28° /19° | 0.1 mm | 7 | |
| Sept. 16 | Overcast | 28° /19° | 0.3 mm | 7 | |
| Sept. 17 | Patchy light drizzle | 29° /18° | 0.5 mm | 7 | |
| Sept. 18 | Light rain | 28° /18° | 3.5 mm | 7 | |
| Sept. 19 | Patchy rain possible | 29° /20° | 2 mm | 6 | |
| Sept. 20 | Patchy rain possible | 30° /18° | 2 mm | 7 | |
| Sept. 21 | Moderate rain | 29° /20° | 22.7 mm | 5 | |
| Sept. 22 | Light rain | 29° /19° | 3.1 mm | 6 | |
| Sept. 23 |  Heavy rain | 27° /18° | 25.4 mm | 6 | |
| Sept. 24 | Mist | 27° /18° | 0.3 mm | 5 | |
| Sept. 25 | Heavy rain | 26° /19° | 42.6 mm | 6 | |
| Sept. 26 | Moderate rain | 25° /17° | 24.1 mm | 6 | |
| Sept. 27 | Heavy rain | 24° /17° | 46.9 mm | 6 | |
| Sept. 28 | Light rain | 25° /17° | 4.6 mm | 6 | |
| Sept. 29 |  Sunny | 26° /16° | 0 mm | 6 | |
| Sept. 30 | Mist | 27° /17° | 0 mm | 6.8 | |
| Next | |||||
Important Notice
Our weather forecast for Chattanooga in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Chattanooga forecast closer to your planned date for the most up-to-date weather information.
Change Month
Chattanooga in September - FAQ
What are the expected maximum and minimum temperatures in Chattanooga during September?
During September, expect a variety of temperatures with highs around 28° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chattanooga during September?
Significant rainfall exceeding 210.7 mm is expected in Chattanooga during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chattanooga during September?
The average wind speed in Chattanooga during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Chattanooga
Explore the daily rainfall trends and prepare for Chattanoogas September weather 💧
Typically, Chattanooga has 9 rainy days in September with a total of 210.7 mm of rainfall.
UV exposure in Chattanooga during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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