August weather forecast
River Rest, TN

Share

Weather in August

The last month of the summer, August, is another hot month in River Rest, Tennessee, with an average temperature varying between 68°F (20°C) and 87.3°F (30.7°C).

Temperature

The transition into August shows a subtle variation to a still tropical 87.3°F (30.7°C) from July's 88°F (31.1°C) in the average high-temperature. During August, an average low-temperature of 68°F (20°C) is observed in River Rest.

Heat index

In August, the heat index is calculated to be a very hot 100.4°F (38°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In River Rest, the average relative humidity in August is 75%.

Rainfall

In River Rest, Tennessee, in August, it is raining for 17.6 days, with typically 3.62" (92mm) of accumulated precipitation. Throughout the year, in River Rest, Tennessee, there are 176.6 rainfall days, and 38.94" (989mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 29min.
On the first day of August in River Rest, sunrise is at 5:55 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
[Resources]

Frequently asked questions

How hot is it in River Rest in August?

The average high-temperature, in August, in River Rest, is 87.3°F (30.7°C), while the average low-temperature is 68°F (20°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 100.4°F (38°C).

What is the average humidity in August in River Rest?

In River Rest, the average relative humidity in August is 75%.

How many days does it rain in August in River Rest?

In August, the rain falls for 17.6 days. Throughout August, 3.62" (92mm) of precipitation is accumulated.

When it does not snow in River Rest?

May through September are months without snowfall.

What is the average length of the day in August in River Rest?

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

What time are sunrise and sunset in August in River Rest?

On the first day of August, sunrise is at 5:55 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:16 pm CDT.

How long on average sun shines in August in River Rest?

The average sunshine duration in August is 10.3h.

When is the highest UV index in River Rest?

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

What is the UV index reading in August in River Rest?

In River Rest, Tennessee, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
River Rest, TN

Average temperature in August - River Rest, TN
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 68°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

[Resources]

Average pressure in August
River Rest, TN

Average pressure in August - River Rest, 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).

[Resources]

Average wind speed in August
River Rest, TN

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

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

[Resources]

Average humidity in August
River Rest, TN

Average humidity in August - River Rest, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are October and November (74%).

[Resources]

Average rainfall in August
River Rest, TN

Average rainfall in August - River Rest, TN
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is July (4.37").
The driest months (with the least rainfall) are September and November (2.36").

[Resources]

Average rainfall days in August
River Rest, TN

Average rainfall days in August - River Rest, TN
  • Average rainfall days in August: 17.6 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10 days).

[Resources]

Average snowfall in August
River Rest, TN

Average snowfall in August - River Rest, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
River Rest, TN

Average snowfall days in August - River Rest, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
River Rest, TN

Average daylight in August / Average sunshine in August - River Rest, 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).

[Resources]

Average sunshine days in August
River Rest, TN

Average sunshine days in August - River Rest, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (9.2 days).

[Resources]

Average UV index in August
River Rest, TN

Average UV index in August - River Rest, 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 and December (UV index 2).

[Resources]

Average cloud cover in August
River Rest, TN

Average cloud cover in August - River Rest, 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).

[Resources]

Average visibility in August
River Rest, TN

Average visibility in August - River Rest, 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).

[Resources]

River Rest, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location