August weather forecast
Lake Vista, TN

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Weather in August

The last month of the summer, August, is another tropical month in Lake Vista, Tennessee, with an average temperature varying between 65.8°F (18.8°C) and 87.4°F (30.8°C).

Temperature

With the onset of August, a modest change to a still hot 87.4°F (30.8°C) from July's 88.9°F (31.6°C) is noted in high-temperature. Throughout August, Lake Vista acknowledges a distinct difference between its daytime highs and the steady low average of 65.8°F (18.8°C).

Heat index

August's heat index is calculated to be a very hot 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Data suggests that the heat index is set for environments in shade and with a light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Lake Vista, the average relative humidity in August is 75%.

Rainfall

In Lake Vista, during August, the rain falls for 17.8 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, there are 172.9 rainfall days, and 40.35" (1025mm) of precipitation is accumulated.

Snowfall

In Lake Vista, snow does not fall in May through October.

Daylight

In Lake Vista, the average length of the day in August is 13h and 26min.
On the first day of August, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

Sunshine

In Lake Vista, the average sunshine in August is 9.4h.

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 risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

During August, Lake Vista experiences an average high-temperature of 87.4°F (30.8°C) and a low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 102.2°F (39°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

How much does it rain in Lake Vista in August?

In Lake Vista, during August, the rain falls for 17.8 days and regularly aggregates up to 3.35" (85mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Lake Vista have in August?

The average day length in August is 13h and 26min.

What time are sunrise and sunset in August?

On the first day of August in Lake Vista, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Lake Vista have in August?

In August, the average sunshine duration is 9.4h.

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 reading in August?

In Lake Vista, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Lake Vista, TN

Average temperature in August - Lake Vista, TN
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in August
Lake Vista, TN

Average pressure in August - Lake Vista, TN
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in August
Lake Vista, TN

Average wind speed in August - Lake Vista, TN
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity in August
Lake Vista, TN

Average humidity in August - Lake Vista, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Lake Vista, TN

Average rainfall in August - Lake Vista, TN
  • Average rainfall in August: 3.35"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").

Average rainfall days in August
Lake Vista, TN

Average rainfall days in August - Lake Vista, TN
  • Average rainfall days in August: 17.8 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in August
Lake Vista, TN

Average snowfall in August - Lake Vista, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Lake Vista, TN

Average snowfall days in August - Lake Vista, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.9 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
Lake Vista, TN

Average daylight in August / Average sunshine in August - Lake Vista, TN
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
Lake Vista, TN

Average sunshine days in August - Lake Vista, TN
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in August
Lake Vista, TN

Average UV index in August - Lake Vista, 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).

Average cloud cover in August
Lake Vista, TN

Average cloud cover in August - Lake Vista, TN
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Lake Vista, TN

Average visibility in August - Lake Vista, TN
  • Average visibility in August: 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).

Lake Vista, Tennessee, USA

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