August weather forecast
Yorktown, VA

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Weather in August

Yorktown's climate in August suggests the closing of summer with a slight dip in temperatures than July, yet still maintaining a warm atmosphere. A higher ultraviolet index and sea temperatures above the yearly average add to Yorktown’s appeal to beachgoers. The city also endures the highest rainfall this month, but it usually falls in short, heavy bursts without disrupting daily activities. The likelihood of winds picking up pace is also minimal, indicating an overall calm period. Despite this weather variability, Yorktown still retains its charm as a summer getaway destination.

Temperature

August registers an average high-temperature of a moderately hot 85.6°F (29.8°C), slightly varied from July's 87.8°F (31°C). Yorktown reports an average nighttime low-temperature of 71.2°F (21.8°C) in August.

Heat index

During August, the heat index is evaluated at a sweltering 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In August, the average relative humidity is 73%.

Rainfall

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.

Snowfall

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

Ocean temperature

The month with the warmest seawater in Yorktown is August, with an average ocean temperature of 79.7°F (26.5°C).
Note: For any water activity, the surface water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are deemed excellent and incredibly pleasant for longer durations.

Daylight

In August, the average length of the day in Yorktown is 13h and 33min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:13 pm. On the last day of August, in Yorktown, sunrise is at 6:36 am and sunset at 7:35 pm EDT.

Sunshine

The average sunshine in August in Yorktown is 10.4h.

UV index

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! Sand and water reflections can notably increase the UV radiation intensity.
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Frequently asked questions

How hot is August in Yorktown?

Yorktown in August has an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 71.2°F (21.8°C). 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 evaluated at 95°F (35°C).

What is the average humidity in August in Yorktown?

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

What is the rainiest month in Yorktown?

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.

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?

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

What is the water temperature in August in Yorktown?

In Yorktown, Virginia, the average seawater temperature in August is 79.7°F (26.5°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

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

In August, the average day length in Yorktown, Virginia, is 13h and 33min.

When is the sunrise / sunset in August in Yorktown?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:13 pm. On the last day of the month, in Yorktown, sunrise is at 6:36 am and sunset at 7:35 pm EDT.

How many hours of sunshine does Yorktown have in August?

In Yorktown, Virginia, the average sunshine duration in August is 10.4h.

What is the UV index reading in August in Yorktown?

In Yorktown, Virginia, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
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 3min

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 42min).

  • 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).

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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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Yorktown, Virginia, USA

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