September weather forecast
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

Weather in September

September, the first month of the autumn in Nashville, is also a moderately hot month, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 62.8°F (17.1°C).

Temperature

In September, the average high-temperature slightly decreases from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.5°F (27.5°C). In September, the average low-temperature is 62.8°F (17.1°C).

Heat index

In September, the average heat index is estimated at a hot 86.4°F (30.2°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like pregnancy, clothing, wind, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September in Nashville is 74%.

Rainfall

In Nashville, during September, the rain falls for 13.4 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Nashville, during the entire year, the rain falls for 169.9 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

In Nashville, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:18 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:32 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Nashville is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Nashville?

In September, in Nashville, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 62.8°F (17.1°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 86.4°F (30.2°C).

What is the average humidity in September in Nashville?

In September, the average relative humidity in Nashville, Tennessee, is 74%.

How many days does it rain in September in Nashville?

In Nashville, Tennessee, in September, it is raining for 13.4 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Nashville?

May through October are months without snowfall in Nashville, Tennessee.

How many hours of daylight does Nashville have in September?

In September, the average day length is 12h and 24min.

What time are sunrise and sunset in September in Nashville?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:15 pm. On the last day of the month, in Nashville, Tennessee, sunrise is at 6:41 am and sunset at 6:32 pm CDT.

How long on average sun shines in September in Nashville?

In Nashville, Tennessee, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Nashville?

The average daily maximum UV index in September in Nashville, Tennessee, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nashville, TN

Average temperature in September - Nashville, TN
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in September: 62.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in September
Nashville, TN

Average pressure in September - Nashville, TN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Nashville, TN

Average wind speed in September - Nashville, TN
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in September
Nashville, TN

Average humidity in September - Nashville, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Nashville, TN

Average rainfall in September - Nashville, TN
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is November (1.77").

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Average rainfall days in September
Nashville, TN

Average rainfall days in September - Nashville, TN
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in September
Nashville, TN

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

The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Nashville, TN

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

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Nashville, TN

Average daylight in September / Average sunshine in September - Nashville, TN
  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 35min).
The month with the shortest days is December (Average daylight: 9h and 45min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Nashville, TN

Average sunshine days in September - Nashville, TN
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in September
Nashville, TN

Average UV index in September - Nashville, TN
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Nashville, TN

Average cloud cover in September - Nashville, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).

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Average visibility in September
Nashville, TN

Average visibility in September - Nashville, TN
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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