September weather forecast
Nashville, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Nashville, Indiana, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.3°F (14.6°C).

Temperature

The start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 83.3°F (28.5°C) in August to a still moderately hot 77.4°F (25.2°C). An average low-temperature of 58.3°F (14.6°C) is anticipated throughout the nights during September.

Humidity

In Nashville, the average relative humidity in September is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.

Snowfall

May through September are months without snowfall in Nashville.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:14 am and sunset at 8:15 pm. On the last day of September, in Nashville, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 in September translates into these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What is the average September temperature in Nashville?

In Nashville, 77.4°F (25.2°C) is the average high-temperature and 58.3°F (14.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 91.4°F (33°C).

What is the average humidity in September in Nashville?

The average relative humidity in September in Nashville is 77%.

What is the driest month in Nashville?

The month with the least rainfall in Nashville is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.

How much does it rain in Nashville in September?

In Nashville, during September, the rain falls for 12.3 days and regularly aggregates up to 1.57" (40mm) of precipitation.

When it does not snow in Nashville?

In Nashville, Indiana, snow does not fall in May through September.

Does it snow in Nashville in September?

In Nashville, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Nashville?

In September, the average day length in Nashville, Indiana, is 12h and 26min.

What time are sunrise and sunset in September in Nashville?

On the first day of September in Nashville, Indiana, sunrise is at 7:14 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

How many hours of sunshine does Nashville have in September?

In September, the average sunshine duration is 8.4h.

What is the UV index reading in September in Nashville?

In Nashville, Indiana, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Nashville, IN

Average temperature in September - Nashville, IN
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in September
Nashville, IN

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Nashville, IN

Average wind speed in September - Nashville, IN
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Nashville, IN

Average humidity in September - Nashville, IN
  • Average humidity in September: 77%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Nashville, IN

Average rainfall in September - Nashville, IN
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in September
Nashville, IN

Average rainfall days in September - Nashville, IN
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).

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Average snowfall in September
Nashville, IN

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

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Nashville, IN

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

The month with the highest number of snowfall days is January (6.8 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, IN

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in September
Nashville, IN

Average sunshine days in September - Nashville, IN
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).

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Average UV index in September
Nashville, IN

Average UV index in September - Nashville, IN
  • 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, October, November and December (UV index 2).

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Average cloud cover in September
Nashville, IN

Average cloud cover in September - Nashville, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Nashville, IN

Average visibility in September - Nashville, IN
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).

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Nashville, Indiana, USA

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