August weather forecast
Cape Charles, VA

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Weather in August

August persists with similar weather patterns to July, nurturing the continued summer festivities. Equally high to those in July, August's high temperatures can reach a warm 81.7°F (27.6°C). The month experiences increasing rainfall volume, reaching 1.69" (43mm), the highest for the year. Concurrently, beach activities remain populous, buoyed by the warm sea temperatures. With plenty of sunshine, the local population and visitors alike make the most of the summer's end.

Temperature

Cape Charles's shift into August sets the average high-temperature at a still moderately hot 81.7°F (27.6°C), a figure that deviates only slightly from July's 82.6°F (28.1°C). A modest nighttime temperature average of 75.7°F (24.3°C) characterizes August.

Heat index

August's average heat index is estimated at a tropical 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in August is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 15.1 days and typically aggregates up to 1.69" (43mm) of precipitation.

Snowfall

In Cape Charles, snow does not fall in April through December.

Ocean temperature

With an average ocean temperature of 79.3°F (26.3°C), August is the month with the warmest seawater.
Note: Water activities including swimming and diving at temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

In Cape Charles, the average length of the day in August is 13h and 33min.
On the first day of August, sunrise is at 6:09 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:33 pm EDT.

Sunshine

In August, the average sunshine is 10.7h.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during August morphs into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cape Charles in August?

In August, the average high-temperature and low-temperature are 81.7°F (27.6°C) and 75.7°F (24.3°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in August?

In Cape Charles, the average relative humidity in August is 75%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 15.1 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 15.1 days. Throughout August, 1.69" (43mm) of precipitation is accumulated.

When it does not snow?

In Cape Charles, snow does not fall in April through December.

What month is the ocean warmest?

The month with the warmest seawater is August, with an average ocean temperature of 79.3°F (26.3°C).

What is the water temperature in August in Cape Charles?

In Cape Charles, the average seawater temperature in August is 79.3°F (26.3°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 Cape Charles have in August?

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

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:09 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:33 pm EDT.

How long on average sun shines in August in Cape Charles?

The average sunshine duration in August is 10.7h.

When is the highest UV index?

July and August, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in August?

The average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Cape Charles, VA

Average temperature in August - Cape Charles, VA
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in August: 75.7°F

The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).

Average pressure in August
Cape Charles, VA

Average pressure in August - Cape Charles, 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 (29.96"Hg).

Average wind speed in August
Cape Charles, VA

Average wind speed in August - Cape Charles, VA
  • Average wind speed in August: 9.7mph

The windiest months (with the highest average wind speed) are January and March (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).

Average humidity in August
Cape Charles, VA

Average humidity in August - Cape Charles, VA
  • Average humidity in August: 75%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, October and November (74%).

Average rainfall in August
Cape Charles, VA

Average rainfall in August - Cape Charles, VA
  • Average rainfall in August: 1.69"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is November (0.71").

Average rainfall days in August
Cape Charles, VA

Average rainfall days in August - Cape Charles, VA
  • Average rainfall days in August: 15.1 days

The month with the highest number of rainy days is August (15.1 days).
The months with the least rainy days are January and October (7.5 days).

Average snowfall in August
Cape Charles, VA

Average snowfall in August - Cape Charles, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Cape Charles, VA

Average snowfall days in August - Cape Charles, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in August
Cape Charles, VA

Average sea temperature in August - Cape Charles, VA
  • Average sea temperature in August: 79.4°F

The best month for swimming (with the highest average sea temperature) is August (79.4°F).
The coldest month (with the lowest average sea temperature) is February (43.1°F).

Average daylight in August /
Average sunshine in August
Cape Charles, VA

Average daylight in August / Average sunshine in August - Cape Charles, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in August
Cape Charles, VA

Average sunshine days in August - Cape Charles, VA
  • Average sunshine days in August: 12.7 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is August (12.7 days).

Average UV index in August
Cape Charles, VA

Average UV index in August - Cape Charles, VA
  • Average UV index in August: 7

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in August
Cape Charles, VA

Average cloud cover in August - Cape Charles, VA
  • Average cloud cover in August: 27

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in August
Cape Charles, VA

Average visibility in August - Cape Charles, 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).

Cape Charles, Virginia, USA

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