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The temperatures in Tennessee in September are comfortable with low of 17°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Tennessee 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 Tennessee in September 2025.
If you’re planning to visit Tennessee in the near future, we highly recommend that you review the 14 day weather forecast for Tennessee before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / -1° | 7 | 19 | 5 | 120 mm | Awful | Tennessee in January |
| February | 9° / 1° | 8 | 15 | 6 | 160 mm | Awful | Tennessee in February |
| March | 15° / 6° | 8 | 21 | 2 | 137 mm | Bad | Tennessee in March |
| April | 20° / 10° | 7 | 23 | 0 | 160 mm | Ok | Tennessee in April |
| May | 25° / 15° | 9 | 22 | 0 | 154 mm | Good | Tennessee in May |
| June | 30° / 20° | 9 | 21 | 0 | 173 mm | Ok | Tennessee in June |
| July | 31° / 21° | 10 | 21 | 0 | 226 mm | Ok | Tennessee in July |
| August | 31° / 21° | 9 | 22 | 0 | 177 mm | Ok | Tennessee in August |
| September | 28° / 17° | 6 | 24 | 0 | 138 mm | Perfect | Tennessee in September |
| October | 21° / 11° | 5 | 25 | 0 | 132 mm | Good | Tennessee in October |
| November | 14° / 5° | 5 | 24 | 1 | 88 mm | Good | Tennessee in November |
| December | 10° / 3° | 6 | 21 | 3 | 137 mm | Bad | Tennessee in December |
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