August weather forecast
Gwynn, VA

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Weather in August

August, the last month of the summer in Gwynn, is also a moderately hot month, with an average temperature ranging between max 85.6°F (29.8°C) and min 71.2°F (21.8°C).

Temperature

Gwynn greets August with an average high-temperature of a moderately hot 85.6°F (29.8°C), marking a slight deviation from the preceding month. In August, Gwynn experiences an average nighttime temperature of 71.2°F (21.8°C).

Heat index

For most parts of August, the heat index is calculated to be a very hot 95°F (35°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In August, the average relative humidity is 73%.

Rainfall

The month with the most rainfall is August, when the rain falls for 17.3 days and typically aggregates up to 3.62" (92mm) of precipitation.

Snowfall

In Gwynn, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 34min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:35 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

In Gwynn, Virginia, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

The average high-temperature, in August, in Gwynn, is 85.6°F (29.8°C), while the average low-temperature is 71.2°F (21.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 95°F (35°C).

What is the average humidity in August?

In August, the average relative humidity is 73%.

What is the wettest month?

The month with the most rainfall in Gwynn is August, when the rain falls for 17.3 days and typically aggregates up to 3.62" (92mm) of precipitation.

How much does it rain in August?

In Gwynn, during August, the rain falls for 17.3 days and regularly aggregates up to 3.62" (92mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

In Gwynn, the average day length in August is 13h and 34min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:35 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.4h.

How high is the UV index in August?

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

Average temperature in August - Gwynn, VA
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 71.2°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in August
Gwynn, VA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Gwynn, VA

Average wind speed in August - Gwynn, VA
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in August
Gwynn, VA

Average humidity in August - Gwynn, 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 (72%).

Average rainfall in August
Gwynn, VA

Average rainfall in August - Gwynn, VA
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in August
Gwynn, VA

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

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in August
Gwynn, VA

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Gwynn, VA

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

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in August
Gwynn, VA

Average sunshine days in August - Gwynn, VA
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in August
Gwynn, VA

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in August
Gwynn, VA

Average cloud cover in August - Gwynn, VA
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Gwynn, VA

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

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

Gwynn, Virginia, USA

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