August weather forecast and climate
Richmond, VA

River James in Richmond, Virginia overlooking the lit city buildings at dusk
River James in Richmond, Virginia overlooking the lit city buildings at dusk

Weather in August

August, the last month of the summer, in Richmond, is another hot month, with temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 88.3°F (31.3°C).

Temperature

In Richmond, the average high-temperature in August is practically the same as in July - a still tropical 88.3°F (31.3°C). The average low-temperature, in Richmond, is 68.5°F (20.3°C).

Heat index

In August, the average heat index is calculated to a torrid 101.7°F (38.7°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, metabolic differences), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In August, the average relative humidity in Richmond is 71%.

Rainfall

The month with the most rainfall is August when the rain falls for 15.6 days and typically aggregates up to 2.87" (73mm) of precipitation.

Snowfall

In Richmond snow does not fall in May through October.

Daylight

In August, the average length of the day in Richmond, Virginia, is 13.6h.

Sunshine

In August, the average sunshine in Richmond is 10h.

UV index

The average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect 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.
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FAQ

What is the temperature in August in Richmond?

The average high-temperature, in August, in Richmond, is 88.3°F (31.3°C), while the average low-temperature is 68.5°F (20.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that factores the actual air temperature with the relative humidity, is estimated at 101.7°F (38.7°C).

What is the average humidity in August in Richmond?

The average relative humidity in August is 71%.

How many days does it rain in August in Richmond?

In Richmond, during August, the rain falls for 15.6 days and regularly aggregates up to 2.87" (73mm) of precipitation.

What is the rainiest month in Richmond?

The month with the most rainfall in Richmond, Virginia, is August when the rain falls for 15.6 days and typically aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Richmond?

May through October are months without snowfall.

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

The average length of the day in August is 13.6h.

How many hours of sunshine does Richmond have in August?

In Richmond, Virginia, the average sunshine in August is 10h.

What is the UV index intensity in August in Richmond?

The average daily maximum UV index in August in Richmond is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in August
Richmond, VA

Average temperature in August - Richmond, VA
  • Average high temperature in August: 88.3°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.6°F).

  • Average low temperature in August: 68.5°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in August
Richmond, VA

Average pressure in August - Richmond, VA
  • Average pressure in August: 29.99"

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

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Average wind speed in August
Richmond, VA

Average wind speed in August - Richmond, VA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Richmond, VA

Average humidity in August - Richmond, VA
  • Average humidity in August: 71%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in August
Richmond, VA

Average rainfall in August - Richmond, VA
  • Average rainfall in August: 2.87"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in August
Richmond, VA

Average rainfall days in August - Richmond, VA
  • Average rainfall days in August: 15.6 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in August
Richmond, VA

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

The month with the highest snowfall is January (2.05").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Richmond, VA

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

The month with the highest number of snowfall days is January (3.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Richmond, VA
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 10h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in August
Richmond, VA

Average sunshine days in August - Richmond, VA
  • Average sunshine days in August: 13.4 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (12.1 days).

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Average UV index in August
Richmond, VA

Average UV index in August - Richmond, VA
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in August
Richmond, VA

Average cloud cover in August - Richmond, VA
  • Average cloud cover in August: 35

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in August
Richmond, VA

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

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

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