August weather forecast
Bristol, VA

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Weather in August

With a marginal decrease in temperatures peaking at around 82.8°F (28.2°C), August offers a slight escape from July’s intensity. The weather continues being highly predictable without any trace of snowfall and maintains summer's vibrant charm. Despite the reduced daylight hours, August brings enough sunlight to brighten the city’s greens, rendering it a postcard-worthy sight. Residents enjoy the consistent weather, perfect for evening barbecues and picnics. The transition into September brings cooler temperatures, reducing the need for constant sun protection and hydration.

Temperature

Bristol marks the onset of August with an average high-temperature of a still warm 82.8°F (28.2°C), a subtle shift from July's 83.3°F (28.5°C). With a significant daily temperature differential, Bristol's nighttime temperature in August falls to an average of 59°F (15°C).

Heat index

The heat index value during August is estimated at a tropical 89.6°F (32°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Heat index determinations are made taking into account the shade and light air movements. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Bristol, Virginia, the average relative humidity in August is 76%.

Rainfall

In Bristol, in August, during 13.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Bristol, Virginia, during the entire year, the rain falls for 159.3 days and collects up to 18.9" (480mm) of precipitation.

Snowfall

In Bristol, snow does not fall in May through September.

Daylight

In Bristol, Virginia, the average length of the day in August is 13h and 31min.
On the first day of the month, sunrise is at 6:35 am and sunset at 8:34 pm. On the last day of August, sunrise is at 6:59 am and sunset at 7:57 pm EDT.

Sunshine

The months with the most sunshine are June and August, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

Is it hot during August?

The average high-temperature, in August, in Bristol, is 82.8°F (28.2°C), while the average low-temperature is 59°F (15°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

How much does it rain in August?

In Bristol, in August, it is raining for 13.9 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Bristol?

In Bristol, snow does not fall in May through September.

How many hours of daylight does Bristol have in August?

In Bristol, Virginia, the average day length in August is 13h and 31min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:35 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:57 pm EDT.

What are the months with the most sunshine?

June and August, with an average of 10.5h of sunshine, are months with the most sunshine.

How many hours of sunshine does Bristol have in August?

In August, the average sunshine duration is 10.5h.

What are the months with the highest UV index in Bristol?

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 August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes 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
Bristol, VA

Average temperature in August - Bristol, VA
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in August
Bristol, VA

Average pressure in August - Bristol, VA
  • Average pressure in August: 30.03"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Bristol, VA

Average wind speed in August - Bristol, VA
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in August
Bristol, VA

Average humidity in August - Bristol, VA
  • Average humidity in August: 76%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is November (75%).

Average rainfall in August
Bristol, VA

Average rainfall in August - Bristol, VA
  • Average rainfall in August: 1.42"

The wettest month (with the highest rainfall) is February (2.17").
The driest month (with the least rainfall) is September (0.87").

Average rainfall days in August
Bristol, VA

Average rainfall days in August - Bristol, VA
  • Average rainfall days in August: 13.9 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in August
Bristol, VA

Average snowfall in August - Bristol, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (3.27").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Bristol, VA

Average snowfall days in August - Bristol, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Bristol, VA

Average daylight in August / Average sunshine in August - Bristol, VA
  • 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 3min

The months with the most sunshine are June and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in August
Bristol, VA

Average sunshine days in August - Bristol, VA
  • Average sunshine days in August: 13.5 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in August
Bristol, VA

Average UV index in August - Bristol, VA
  • 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
Bristol, VA

Average cloud cover in August - Bristol, VA
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Bristol, VA

Average visibility in August - Bristol, VA
  • Average visibility in August: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Bristol, Virginia, USA

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