August weather forecast
Triangle, VA

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Weather in August

The last month of the summer, August, is another hot month in Triangle, Virginia, with an average temperature fluctuating between 66°F (18.9°C) and 86.2°F (30.1°C).

Temperature

As Triangle welcomes August, the average high-temperature records at a still hot 86.2°F (30.1°C), marking an insignificant deviation from the prior month. Throughout August, a steady low-temperature average of 66°F (18.9°C) is noted.

Heat index

August's heat index is computed to be a very hot 98.6°F (37°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. 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 largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In August, the average relative humidity is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.66" (93mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Triangle, the average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in August is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, the average high-temperature and low-temperature are 86.2°F (30.1°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 98.6°F (37°C).

What is the average humidity in August?

In Triangle, Virginia, the average relative humidity in August is 75%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.66" (93mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 16 days. Throughout August, 3.66" (93mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall in Triangle.

What is the average length of the day in August?

In Triangle, the average day length in August is 13h and 37min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration in Triangle is 10h.

What is the month with the highest UV index?

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

How high is the UV index in August?

In Triangle, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Triangle, VA

Average temperature in August - Triangle, VA
  • Average high temperature in August: 86.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in August
Triangle, VA

Average pressure in August - Triangle, VA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Triangle, VA

Average wind speed in August - Triangle, VA
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Triangle, VA

Average humidity in August - Triangle, VA
  • Average humidity in August: 75%

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

Average rainfall in August
Triangle, VA

Average rainfall in August - Triangle, VA
  • Average rainfall in August: 3.66"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in August
Triangle, VA

Average rainfall days in August - Triangle, VA
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in August
Triangle, VA

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

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Triangle, VA

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

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Triangle, VA
  • Average daylight in August: 13h and 4min

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

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Triangle, VA

Average sunshine days in August - Triangle, VA
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in August
Triangle, VA

Average UV index in August - Triangle, 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, November and December (UV index 2).

Average cloud cover in August
Triangle, VA

Average cloud cover in August - Triangle, VA
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Triangle, VA

Average visibility in August - Triangle, VA
  • Average visibility in August: 6mi

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

Triangle, Virginia, USA

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