August weather forecast
Radiant, VA

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Weather in August

The last month of the summer, August, is another tropical month in Radiant, Virginia, with temperature in the range of an average high of 86°F (30°C) and an average low of 64.4°F (18°C).

Temperature

At the start of August, Radiant's average high-temperature reaches a still hot 86°F (30°C), subtly different from the preceding month. Radiant, during the nights of August, registers a substantial plunge from the daytime high, averaging at an enjoyable 64.4°F (18°C).

Heat index

For August, the heat index is appraised at a very hot 96.8°F (36°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in August is 73%.

Rainfall

In Radiant, during August, the rain falls for 15.5 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Radiant, there are 158.3 rainfall days, and 28.5" (724mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Radiant, Virginia, is 13h and 37min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:43 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

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 threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Radiant during August?

In August, the average high-temperature and low-temperature in Radiant are 86°F (30°C) and 64.4°F (18°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 96.8°F (36°C).

What is the average humidity in August in Radiant?

The average relative humidity in August in Radiant, Virginia, is 73%.

How many days does it rain in August in Radiant?

In Radiant, Virginia, in August, during 15.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

When it does not snow in Radiant?

May through October are months without snowfall in Radiant.

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

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

When are sunrise and sunset in August in Radiant?

On the first day of August in Radiant, Virginia, sunrise is at 6:15 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:43 pm EDT.

How long on average sun shines in August in Radiant?

In August, the average sunshine duration is 10.3h.

When is the highest UV index in Radiant?

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

How high is the UV index in August in Radiant?

The average daily maximum UV index in August in Radiant is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Radiant, VA

Average temperature in August - Radiant, VA
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in August
Radiant, VA

Average pressure in August - Radiant, VA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Radiant, VA

Average wind speed in August - Radiant, VA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in August
Radiant, VA

Average humidity in August - Radiant, VA
  • Average humidity in August: 73%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in August
Radiant, VA

Average rainfall in August - Radiant, VA
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is April (2.95").
The driest months (with the least rainfall) are January and September (1.85").

Average rainfall days in August
Radiant, VA

Average rainfall days in August - Radiant, VA
  • Average rainfall days in August: 15.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in August
Radiant, VA

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

The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Radiant, VA

Average snowfall days in August - Radiant, 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
Radiant, VA

Average daylight in August / Average sunshine in August - Radiant, 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 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in August
Radiant, VA

Average sunshine days in August - Radiant, VA
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in August
Radiant, VA

Average UV index in August - Radiant, 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
Radiant, VA

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

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Radiant, VA

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

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

Radiant, Virginia, USA

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