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 beginning of August records an average high-temperature of a still tropical 87.4°F (30.8°C), almost echoing the conditions of the previous month. An average low-temperature of 68.4°F (20.2°C) is common during the nights of August.

Heat index

The heat index value during August is evaluated at a very hot 100.4°F (38°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In August, the average relative humidity is 74%.

Rainfall

In Brentwood, 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

May through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine in August 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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is August?

An average high-temperature, in August, in Brentwood, 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. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 100.4°F (38°C).

What is the average humidity in August in Brentwood?

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

How much 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.

How many hours of daylight does Brentwood have in August?

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

When is the sunrise / 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 August, the average sunshine duration is 10.3h.

When is the highest UV index?

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

What is the UV index reading in August?

In Brentwood, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's 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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