August weather forecast
Nashville, TN

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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 August

As the summer season reaches August, the weather in Nashville remains consistently warm, with only a minor reduction in average temperatures compared to July. Holiday-goers continue to enjoy the prolonged daylight and reduced wind speeds. The month's bright sunshine and pleasant conditions make it conducive to participate in a range of outdoor festivals or take leisurely strolls in the park.

Temperature

Nashville indicates an average high-temperature of a still hot 87.4°F (30.8°C) in August, showing minor variation from July's 88.3°F (31.3°C). Nashville throughout August, experiences an average nighttime temperature of 68.5°F (20.3°C).

Heat index

Throughout August, the heat index is computed to be a torrid 100.4°F (38°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Nashville, the average relative humidity in August is 73%.

Rainfall

In Nashville, in August, during 17.8 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. 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

In Nashville, the average length of the day in August is 13h and 29min.
On the first day of the month, sunrise is at 5:54 am and sunset at 7:52 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:15 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

How hot is August?

The high-temperature, in August, in Nashville, is 87.4°F (30.8°C), while the low-temperature averages to 68.5°F (20.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 100.4°F (38°C).

What is the average humidity in August?

In August, the average relative humidity is 73%.

How much does it rain in August?

In August, the rain falls for 17.8 days. Throughout August, 3.23" (82mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 29min.

When are sunrise and sunset in August?

On the first day of August in Nashville, sunrise is at 5:54 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:15 pm CDT.

How many hours of sunshine does Nashville have in August?

In Nashville, the average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

In August, the average daily maximum UV index in Nashville is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average max. wind speed
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 August
Nashville, TN

Average temperature in August - Nashville, TN
  • Average high temperature in August: 87.4°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 August: 68.5°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 August
Nashville, TN

Average pressure in August - Nashville, TN
  • Average pressure in August: 29.99"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 August
Nashville, TN

Average wind speed in August - Nashville, TN
  • Average wind speed in August: 4.6mph

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 August
Nashville, TN

Average humidity in August - Nashville, TN
  • Average humidity in August: 73%

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

Average rainfall in August
Nashville, TN

Average rainfall in August - Nashville, TN
  • Average rainfall in August: 3.23"

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 August
Nashville, TN

Average rainfall days in August - Nashville, TN
  • Average rainfall days in August: 17.8 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 August
Nashville, TN

Average snowfall in August - Nashville, TN
  • Average snowfall in August: 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 August
Nashville, TN

Average snowfall days in August - Nashville, TN
  • Average snowfall days in August: 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 August /
Average sunshine in August
Nashville, TN

Average daylight in August / Average sunshine in August - Nashville, TN
  • Average daylight in August: 13h and 3min

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 August: 10h and 2min

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 August
Nashville, TN

Average sunshine days in August - Nashville, TN
  • Average sunshine days in August: 11.4 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 August
Nashville, TN

Average UV index in August - Nashville, TN
  • Average UV index in August: 6

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 August
Nashville, TN

Average cloud cover in August - Nashville, TN
  • Average cloud cover in August: 29

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 August
Nashville, TN

Average visibility in August - Nashville, TN
  • Average visibility in August: 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).

Nashville, Tennessee, USA

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