August weather forecast
Big Island, VA

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Weather in August

The last month of the summer, August, is another warm month in Big Island, Virginia, with an average temperature varying between 60.4°F (15.8°C) and 84°F (28.9°C).

Temperature

The average high-temperature during August registers at a still warm 84°F (28.9°C), maintaining a close resemblance to the previous month. During August nights, Big Island documents a marked contrast from daily highs, with an average temperature of 60.4°F (15.8°C).

Heat index

For August, the heat index is appraised at a tropical 91.4°F (33°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Big Island, in August, during 15.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Big Island, there are 146.4 rainfall days, and 23.86" (606mm) of precipitation is accumulated.

Snowfall

In Big Island, snow does not fall in May through October.

Daylight

The average length of the day in August in Big Island is 13h and 34min.
On the first day of August, sunrise is at 6:22 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:47 pm EDT.

Sunshine

In August, the average sunshine in Big Island 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 health hazard from exposure to the Sun's UV rays for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

How hot is August in Big Island?

Big Island in August has an average high-temperature of 84°F (28.9°C) and an average low-temperature of 60.4°F (15.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 91.4°F (33°C).

What is the average humidity in August in Big Island?

In Big Island, the average relative humidity in August is 75%.

How many days does it rain in August in Big Island?

In Big Island, Virginia, in August, during 15.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Big Island?

May through October are months without snowfall in Big Island.

How many hours of daylight does Big Island have in August?

The average day length in August in Big Island, Virginia, is 13h and 34min.

When is the sunrise / sunset in August in Big Island?

On the first day of August, sunrise is at 6:22 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:47 pm EDT.

How long on average sun shines in August in Big Island?

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

When is the highest UV index in Big Island?

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

How high is the UV index in August in Big Island?

In Big Island, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Big Island, VA

Average temperature in August - Big Island, VA
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in August
Big Island, VA

Average pressure in August - Big Island, VA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in August
Big Island, VA

Average wind speed in August - Big Island, VA
  • Average wind speed in August: 3.9mph

The windiest months (with the highest average wind speed) are February and April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in August
Big Island, VA

Average humidity in August - Big Island, VA
  • Average humidity in August: 75%

The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in August
Big Island, VA

Average rainfall in August - Big Island, VA
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in August
Big Island, VA

Average rainfall days in August - Big Island, VA
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in August
Big Island, VA

Average snowfall in August - Big Island, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Big Island, VA

Average snowfall days in August - Big Island, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Big Island, VA

Average daylight in August / Average sunshine in August - Big Island, 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 1min

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 24min).

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Average sunshine days in August
Big Island, VA

Average sunshine days in August - Big Island, VA
  • Average sunshine days in August: 13.4 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in August
Big Island, VA

Average UV index in August - Big Island, 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).

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Average cloud cover in August
Big Island, VA

Average cloud cover in August - Big Island, VA
  • Average cloud cover in August: 33

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

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Average visibility in August
Big Island, VA

Average visibility in August - Big Island, VA
  • Average visibility in August: 5mi

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

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Big Island, Virginia, USA

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