Nashville
Tennessee, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Nashville, TN

Overlooking the city buildings of Nashville, Tennessee, across the riverfront, with a big cruise ship ashore
Overlooking the city buildings of Nashville, Tennessee, across the riverfront, with a big cruise ship ashore
September is the beginning of the autumn season in Nashville, and the time when the average humidity is at the highest of 74% during the year.
The average temperatures are in the range of 61°F (16.1°C) to 82°F (27.8°C) with plenty of sunny days. As the autumn advances, it brings cool breezes during the evenings, perfect for enjoying a walk in the many parks in Nashville.
Additionally, the miles of biking tracks see much activity during mornings and evenings when the temperatures are in the warm range.

What is the temperature in September in Nashville?

The average high-temperature, in September, in Nashville, is 82.4°F (28°C), while the average low-temperature is 60.6°F (15.9°C).

What is the most humid month in Nashville?

September is the most humid month in Nashville, Tennessee, with an average relative humidity of 73.7%.

What is the average humidity in September in Nashville?

In Nashville, Tennessee, the average relative humidity in September is 73.7%.

How many days does it rain in September in Nashville?

In Nashville, in September, it is raining for 7.5 days, with typically 3.4" (86.6mm) of accumulated precipitation.

How many hours of daylight does Nashville have in September?

The average length of the day in September in Nashville is 12.4h.

How long on average sun shines in September in Nashville?

In Nashville, Tennessee, the average sunshine in September is 7.5h.

How high is the UV index in September in Nashville?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Nashville, TN
  • Average high temperature in September: 28°C

The warmest month (with the highest average high temperature) is July (31.8°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in September: 15.9°C

The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (-2°C).

Average humidity in September - Nashville, TN
  • Average humidity in September: 73.7%

The month with the highest relative humidity is September (73.7%).
The month with the lowest relative humidity is April (63.2%).

Average rainfall in September - Nashville, TN
  • Average rainfall in September: 86.6mm

The wettest month (with the highest rainfall) is May (139.7mm).
The driest month (with the lowest rainfall) is October (77.2mm).

Average rainfall days in September - Nashville, TN
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is May (11.7 days).
The month with the lowest number of rainy days is September (7.5 days).

Average snowfall in September - Nashville, TN
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (66mm).
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September - Nashville, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and November (0 days).

Average daylight in September / Average sunshine in September - Nashville, TN
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 7.5h

The month with most sunshine is June (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 4.2h).

Average UV index in September - Nashville, TN
  • Average UV index in September: 7

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).