September weather forecast
West Nashville, TN

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Weather in September

Gradual drops in temperature from August into September characterize the arrival of autumn in West Nashville, Tennessee. The decreasing rainfall, measured at 2.01" (51mm) over 13.4 days, signals the shift away from the summer showers. Length of daylight hours continues to decline, while the slight increase in wind speed is a typical autumnal trait. Transitioning into October, expect further drops in temperature and steadily increasing gusts of wind.

Temperature

During the shift to September, a minor reduction in average high-temperature is observed, shifting from a hot 87.4°F (30.8°C) in August to a moderately hot 81.5°F (27.5°C). Throughout September, West Nashville records an average temperature of 62.8°F (17.1°C) at night.

Heat index

For most parts of September, the heat index is appraised at a tropical 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The average relative humidity in September is 74%.

Rainfall

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

Snowfall

May through October are months without snowfall in West Nashville.

Daylight

The average length of the day in September in West Nashville is 12h and 24min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:31 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in West Nashville in September?

September temperatures in West Nashville vary between a high-temperature of 81.5°F (27.5°C) and a low-temperature of 62.8°F (17.1°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 86°F (30°C).

What is the average humidity in September in West Nashville?

The average relative humidity in September in West Nashville, Tennessee, is 74%.

How much does it rain in West Nashville in September?

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

When it does not snow in West Nashville?

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

How many hours of daylight does West Nashville have in September?

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

When is the sunrise / sunset in September in West Nashville?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:14 pm. On the last day of the month, in West Nashville, sunrise is at 6:42 am and sunset at 6:31 pm CDT.

How many hours of sunshine does West Nashville have in September?

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

What is the UV index reading in September in West Nashville?

The average daily maximum UV index in September in West Nashville is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
West Nashville, TN

Average temperature in September - West 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).

Average pressure in September
West Nashville, TN

Average pressure in September - West 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).

Average wind speed in September
West Nashville, TN

Average wind speed in September - West 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).

Average humidity in September
West Nashville, TN

Average humidity in September - West 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%).

Average rainfall in September
West Nashville, TN

Average rainfall in September - West 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").

Average rainfall days in September
West Nashville, TN

Average rainfall days in September - West 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).

Average snowfall in September
West Nashville, TN

Average snowfall in September - West 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").

Average snowfall days in September
West Nashville, TN

Average snowfall days in September - West 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).

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

Average daylight in September / Average sunshine in September - West Nashville, TN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 4min

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).

Average sunshine days in September
West Nashville, TN

Average sunshine days in September - West 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).

Average UV index in September
West Nashville, TN

Average UV index in September - West 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).

Average cloud cover in September
West Nashville, TN

Average cloud cover in September - West 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).

Average visibility in September
West Nashville, TN

Average visibility in September - West 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).

West Nashville, Tennessee, USA

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