September weather forecast
Nashville, AR

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Weather in September

September, the first month of the autumn in Nashville, is still a tropical month, with an average temperature fluctuating between 86.5°F (30.3°C) and 65.7°F (18.7°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's tropical 93°F (33.9°C) to a still hot 86.5°F (30.3°C). Nashville's nighttime temperature in September falls to an average of 65.7°F (18.7°C).

Heat index

In September, the heat index is appraised at a fiery hot 96.8°F (36°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in September is 71%.

Rainfall

The month with the least rainfall in Nashville is September, when the rain falls for 12.2 days and typically collects 2.44" (62mm) of precipitation.

Snowfall

In Nashville, snow does not fall in April through December.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

The average daily maximum UV index in September in Nashville is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

How hot is September in Nashville?

The high-temperature, in September, in Nashville, records 86.5°F (30.3°C), while the low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is appraised at 96.8°F (36°C).

What is the average humidity in September in Nashville?

In Nashville, the average relative humidity in September is 71%.

What is the driest month in Nashville?

September is the month with the least rainfall in Nashville, Arkansas. Rain falls for 12.2 days and accumulates 2.44" (62mm) of precipitation.

How many days does it rain in September in Nashville?

In September, in Nashville, the rain falls for 12.2 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Nashville?

April through December are months without snowfall in Nashville.

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

The average day length in September in Nashville, Arkansas, is 12h and 22min.

When are sunrise and sunset in September in Nashville?

In September, on the first day of the month, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of the month, in Nashville, Arkansas, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

How long on average sun shines in September in Nashville?

In Nashville, Arkansas, the average sunshine duration in September is 9.3h.

How high is the UV index in September in Nashville?

In September, the average daily maximum UV index in Nashville, Arkansas, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Nashville, AR

Average temperature in September - Nashville, AR
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

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Average pressure in September
Nashville, AR

Average pressure in September - Nashville, AR
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Nashville, AR

Average wind speed in September - Nashville, AR
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Nashville, AR

Average humidity in September - Nashville, AR
  • Average humidity in September: 71%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Nashville, AR

Average rainfall in September - Nashville, AR
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is September (2.44").

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Average rainfall days in September
Nashville, AR

Average rainfall days in September - Nashville, AR
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is January (10.4 days).

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Average snowfall in September
Nashville, AR

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Nashville, AR

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Nashville, AR

Average sunshine days in September - Nashville, AR
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in September
Nashville, AR

Average UV index in September - Nashville, AR
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Nashville, AR

Average cloud cover in September - Nashville, AR
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Nashville, AR

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

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

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Nashville, Arkansas, USA

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