August weather forecast
Yorktown, VA

Weather in August

August, the last month of the summer in Yorktown, is another warm month, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 85.6°F (29.8°C).

Temperature

In Yorktown, the average high-temperature in August is essentially the same as in July - a moderately hot 85.6°F (29.8°C). In August, the average low-temperature is 71.2°F (21.8°C).

Heat index

In August, the average heat index is calculated to be a sweltering 95.5°F (35.3°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, clothing, pregnancy, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Yorktown, the average relative humidity in August is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.62" (92mm) of precipitation.

Snowfall

April through October are months without snowfall.

Ocean temperature

With an average ocean temperature of 79.7°F (26.5°C), August is the month with the warmest seawater.
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In August, the average length of the day in Yorktown, Virginia, is 13h and 33min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:36 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in August in Yorktown?

In Yorktown, Virginia, in August, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 71.2°F (21.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is calculated to be 95.5°F (35.3°C).

What is the average humidity in August in Yorktown?

In Yorktown, the average relative humidity in August is 73%.

What is the wettest month in Yorktown?

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

How many days does it rain in August in Yorktown?

In Yorktown, in August, during 17.3 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

When it does not snow in Yorktown?

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

What month is the ocean warmest in Yorktown?

With an average ocean temperature of 79.7°F (26.5°C), August is the month with the warmest seawater.

What is the ocean temperature in August in Yorktown?

In Yorktown, Virginia, in August, the average water temperature is 79.7°F (26.5°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Yorktown have in August?

The average day length in August in Yorktown is 13h and 33min.

What time are sunrise and sunset in August in Yorktown?

In August, on the first day of the month, sunrise is at 6:10 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:36 pm EDT.

How many hours of sunshine does Yorktown have in August?

The average sunshine duration in August in Yorktown is 10.4h.

What is the UV index reading in August in Yorktown?

In August, the average daily maximum UV index in Yorktown, Virginia, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Yorktown, VA

Average temperature in August - Yorktown, 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).

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Average pressure in August
Yorktown, VA

Average pressure in August - Yorktown, 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).

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Average wind speed in August
Yorktown, VA

Average wind speed in August - Yorktown, 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).

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Average humidity in August
Yorktown, VA

Average humidity in August - Yorktown, 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%).

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Average rainfall in August
Yorktown, VA

Average rainfall in August - Yorktown, 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").

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Average rainfall days in August
Yorktown, VA

Average rainfall days in August - Yorktown, 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).

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Average snowfall in August
Yorktown, VA

Average snowfall in August - Yorktown, 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").

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Average snowfall days in August
Yorktown, VA

Average snowfall days in August - Yorktown, 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).

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Average sea temperature in August
Yorktown, VA

Average sea temperature in August - Yorktown, VA
  • Average sea temperature in August: 79.6°F

The best month for swimming (with the highest average sea temperature) is August (79.6°F).
The coldest month (with the lowest average sea temperature) is February (48.7°F).

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

Average daylight in August / Average sunshine in August - Yorktown, VA
  • Average daylight in August: 13h and 33min

The month with the longest days is June (Average daylight: 14h and 41min).
The month with the shortest days is December (Average daylight: 9h and 39min).

  • Average sunshine in August: 10h and 24min

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).

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Average sunshine days in August
Yorktown, VA

Average sunshine days in August - Yorktown, 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).

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Average UV index in August
Yorktown, VA

Average UV index in August - Yorktown, 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).

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Average cloud cover in August
Yorktown, VA

Average cloud cover in August - Yorktown, 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).

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Average visibility in August
Yorktown, VA

Average visibility in August - Yorktown, 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).

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