September weather forecast
Nashville, AR

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Weather in September

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

Temperature

A modest decline in the average high-temperature is seen during September, decreasing from 93°F (33.9°C) in August to a still tropical 86.5°F (30.3°C). In Nashville, September's nights observe an average temperature dip to a refreshing 65.7°F (18.7°C).

Heat index

In September, the heat index is evaluated at a fiery hot 96.8°F (36°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

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

Rainfall

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

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Nashville, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

Nashville in September has an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 96.8°F (36°C).

What is the average humidity in September in Nashville?

In September, the average relative humidity is 71%.

What is the driest month?

September is the month with the least rainfall. 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, during 12.2 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in September?

In Nashville, the average day length in September is 12h and 22min.

When are sunrise and sunset in September?

On the first day of September in Nashville, 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.

How many hours of sunshine does Nashville have in September?

In September, the average sunshine duration is 9.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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, 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Nashville, Arkansas, USA

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