Nashville · September
Run in the morning.
Comfortable average high of 83°F, dipping to 65°F at night. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
83° / 65°F
Humidity
72%
Rain days
11/mo
Wind
8 mph
What September feels like in Nashville
Sunrise
06:30
Mid-month average
Sunset
18:53
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Nashville in September
The kit for September in Nashville: shorts and a short-sleeve are the standard kit.
September vs the surrounding months
vs August
-4° avg high
-9 rain days
Nashville in August →
September
83°F avg high
11 rain days
Best: morning
vs October
+10° avg high
-1 rain days
Nashville in October →
Frequently Asked Questions
What is the best time of day to run in Nashville in September?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Nashville in September?+
Average high 83°F, average low 65°F.
How does September compare to surrounding months in Nashville?+
Compared to August (avg high 87°F), September is cooler. Compared to October (avg high 72°F), September is warmer.
Does it rain often in Nashville in September?+
Expect about 11 measurable rain days in September, on average.