August weather forecast
Brentwood, TN

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Weather in August

Brentwood experiences maintained summer heat in August, with the relative humidity and pressure falling slightly. However, this month witnesses the year’s highest wind gust speeds, adding a rejuvenating feel to the heated days. Residents continue to enjoy abundant sunshine and daylight. The minimally changing weather conditions hint at the endurance of summer vibes. The month of August is one of the perfect times to embrace the full charm of a Tennessee summer.

Temperature

The arrival of August in Brentwood brings an average high-temperature of a still hot 87.4°F (30.8°C), subtly diverging from July's 88.3°F (31.3°C). Throughout August, the temperature falls to an average low of 68.4°F (20.2°C).

Heat index

The heat index value during August is computed to be a fiery hot 100.4°F (38°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Brentwood, the average relative humidity in August is 74%.

Rainfall

In Brentwood, Tennessee, during August, the rain falls for 18.7 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Brentwood, during the entire year, the rain falls for 166.2 days and collects up to 33.86" (860mm) of precipitation.

Snowfall

In Brentwood, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 29min.
On the first day of August in Brentwood, Tennessee, sunrise is at 5:55 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:15 pm CDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, in Brentwood, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 68.4°F (20.2°C). The average heat index (a.k.a. 'real feel', 'felt air 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 74%.

How many days does it rain in August?

In August, the rain falls for 18.7 days. Throughout August, 3.39" (86mm) of precipitation is accumulated.

When it does not snow?

In Brentwood, snow does not fall in May through October.

What is the average length of the day in August?

In August, the average day length is 13h and 29min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:15 pm CDT.

How long on average sun shines in August?

In Brentwood, the average sunshine duration in August is 10.3h.

When is the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 August
Brentwood, TN

Average temperature in August - Brentwood, 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 (45°F).

  • Average low temperature in August: 68.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in August
Brentwood, TN

Average pressure in August - Brentwood, 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
Brentwood, TN

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

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in August
Brentwood, TN

Average humidity in August - Brentwood, TN
  • Average humidity in August: 74%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June and October (73%).

Average rainfall in August
Brentwood, TN

Average rainfall in August - Brentwood, TN
  • Average rainfall in August: 3.39"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in August
Brentwood, TN

Average rainfall days in August - Brentwood, TN
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in August
Brentwood, TN

Average snowfall in August - Brentwood, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is March (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Brentwood, TN

Average snowfall days in August - Brentwood, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.2 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
Brentwood, TN

Average daylight in August / Average sunshine in August - Brentwood, 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 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in August
Brentwood, TN

Average sunshine days in August - Brentwood, TN
  • Average sunshine days in August: 10.9 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in August
Brentwood, TN

Average UV index in August - Brentwood, 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
Brentwood, TN

Average cloud cover in August - Brentwood, TN
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August
Brentwood, TN

Average visibility in August - Brentwood, 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).

Brentwood, Tennessee, USA

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