Clarksville (TN)
September
Weather in Clarksville, Tennessee for September 2026
Your guide to Clarksville weather in September - trends and predictions
In general, the average temperature in Clarksville at the beginning of September is 29.1 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.9 °F by the end of September.
The climate of Clarksville in September is notably wet, with an average of 14 rainy days, and a total of 209.8 mm of precipitation.
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Temperatures
Rain 🌧️
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16
Dry days
14
Rainy days
0
Snow days
29°/17°
Temperatures
15 km/h
Avg max wind
65 %
Avg humidity
Clarksville Weather September
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Temperatures trend during September in Clarksville
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September weather in Clarksville day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 28° /16° | 2 mm | 6 | |
| Sept. 2 |  Cloudy | 30° /17° | 3.1 mm | 7 | |
| Sept. 3 |  Fog | 29° /16° | 5.3 mm | 6 | |
| Sept. 4 |  Partly cloudy | 29° /20° | 3.7 mm | 7 | |
| Sept. 5 |  Moderate or heavy rain shower | 31° /19° | 30.4 mm | 7 | |
| Sept. 6 |  Patchy light rain with thunder | 30° /17° | 22.9 mm | 7 | |
| Sept. 7 |  Sunny | 27° /13° | 0.7 mm | 7 | |
| Sept. 8 | Sunny | 26° /10° | 0 mm | 6 | |
| Sept. 9 | Overcast | 28° /12° | 0 mm | 6 | |
| Sept. 10 | Mist | 30° /14° | 0 mm | 7 | |
| Sept. 11 | Cloudy | 31° /17° | 0 mm | 7 | |
| Sept. 12 |  Moderate rain | 27° /17° | 10.4 mm | 6 | |
| Sept. 13 | Fog | 28° /15° | 3.1 mm | 6 | |
| Sept. 14 | Overcast | 26° /16° | 6 mm | 6 | |
| Sept. 15 | Sunny | 30° /15° | 0 mm | 7 | |
| Sept. 16 |  Patchy rain possible | 30° /16° | 0.1 mm | 7 | |
| Sept. 17 | Fog | 29° /14° | 0 mm | 6 | |
| Sept. 18 | Partly cloudy | 29° /15° | 0 mm | 7 | |
| Sept. 19 | Overcast | 31° /16° | 0 mm | 7 | |
| Sept. 20 | Overcast | 32° /17° | 0 mm | 7 | |
| Sept. 21 | Overcast | 33° /20° | 2.2 mm | 7 | |
| Sept. 22 | Partly cloudy | 32° /20° | 1.7 mm | 7 | |
| Sept. 23 | Moderate or heavy rain shower | 29° /18° | 15.3 mm | 7 | |
| Sept. 24 | Fog | 28° /17° | 14.5 mm | 6 | |
| Sept. 25 | Patchy rain possible | 24° /16° | 11.5 mm | 5 | |
| Sept. 26 | Mist | 26° /14° | 2.9 mm | 6 | |
| Sept. 27 |  Thundery outbreaks possible | 26° /16° | 75 mm | 6 | |
| Sept. 28 | Thundery outbreaks possible | 27° /16° | 18.7 mm | 6 | |
| Sept. 29 | Moderate rain at times | 28° /16° | 1.7 mm | 7 | |
| Sept. 30 | Fog | 29° /16° | 0.4 mm | 7 | |
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Important Notice
Our weather forecast for Clarksville 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 Clarksville forecast closer to your planned date for the most up-to-date weather information.
Change Month
Clarksville in September - FAQ
What are the expected maximum and minimum temperatures in Clarksville during September?
During September, expect a variety of temperatures with highs around 29° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Clarksville during September?
Significant rainfall exceeding 209.8 mm is expected in Clarksville during September, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Clarksville during September?
The average wind speed in Clarksville during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Clarksville
Explore the daily rainfall trends and prepare for Clarksvilles September weather 💧
UV exposure in Clarksville during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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