August weather forecast
Oakton, VA

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Weather in August

August, the last month of the summer in Oakton, is also a moderately hot month, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 66.9°F (19.4°C).

Temperature

August's arrival brings an average high-temperature of a moderately hot 85.8°F (29.9°C), demonstrating subtle variation from the preceding month. Oakton's nights in August cool down to an average low-temperature of 66.9°F (19.4°C).

Heat index

In August, the average heat index is calculated to be a sweltering 95°F (35°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
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. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in August is 72%.

Rainfall

The month with the most rainfall is August, when the rain falls for 17.3 days and typically aggregates up to 3.78" (96mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Oakton is 13h and 38min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in August in Oakton is 10.2h.

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 average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Oakton?

The high-temperature in Oakton, Virginia, during August is 85.8°F (29.9°C) and the low-temperature is 66.9°F (19.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 95°F (35°C).

What is the average humidity in August in Oakton?

In Oakton, the average relative humidity in August is 72%.

What is the wettest month in Oakton?

August is the month with the most rainfall in Oakton. Rain falls for 17.3 days and accumulates 3.78" (96mm) of precipitation.

How many days does it rain in August in Oakton?

In Oakton, Virginia, in August, during 17.3 rainfall days, 3.78" (96mm) of precipitation is typically accumulated.

When it does not snow in Oakton?

In Oakton, Virginia, snow does not fall in May through October.

What is the average length of the day in August in Oakton?

In Oakton, the average day length in August is 13h and 38min.

What time are sunrise and sunset in August in Oakton?

On the first day of August in Oakton, sunrise is at 6:10 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:40 pm EDT.

How long on average sun shines in August in Oakton?

In Oakton, Virginia, the average sunshine duration in August is 10.2h.

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

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

What is the UV index reading in August in Oakton?

In Oakton, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Oakton, VA

Average temperature in August - Oakton, VA
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 66.9°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in August
Oakton, VA

Average pressure in August - Oakton, 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
Oakton, VA

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

The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Oakton, VA

Average humidity in August - Oakton, VA
  • Average humidity in August: 72%

The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in August
Oakton, VA

Average rainfall in August - Oakton, VA
  • Average rainfall in August: 3.78"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in August
Oakton, VA

Average rainfall days in August - Oakton, VA
  • Average rainfall days in August: 17.3 days

The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in August
Oakton, VA

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

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Oakton, VA

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

The month with the highest number of snowfall days is January (5.6 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
Oakton, VA

Average daylight in August / Average sunshine in August - Oakton, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

Average sunshine days in August
Oakton, VA

Average sunshine days in August - Oakton, VA
  • Average sunshine days in August: 11.6 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Oakton, VA

Average UV index in August - Oakton, 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
Oakton, VA

Average cloud cover in August - Oakton, VA
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Oakton, VA

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

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

Oakton, Virginia, USA

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