August weather forecast
Colonial Beach, VA

Share

Weather in August

August, the last month of the summer in Colonial Beach, is another warm month, with an average temperature varying between 67.8°F (19.9°C) and 85.5°F (29.7°C).

Temperature

With the onset of August, the average high-temperature registers at a moderately hot 85.5°F (29.7°C), subtly different from July's 87.4°F (30.8°C). Colonial Beach experiences an average nighttime temperature of 67.8°F (19.9°C) in the month of August.

Heat index

August's heat index is appraised at a very hot 95°F (35°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in August is 75%.

Rainfall

The months with the most rainfall are July and August, with an average 3.19" (81mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

The month with the warmest seawater in Colonial Beach is August, with an average ocean temperature of 78.4°F (25.8°C).
Note: 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.

Daylight

The average length of the day in August is 13h and 36min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:38 pm EDT.

Sunshine

In Colonial Beach, the average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.

Frequently asked questions

How hot is it in August?

The high-temperature, in August, in Colonial Beach, records 85.5°F (29.7°C), while the low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 95°F (35°C).

What is the average humidity in August?

In Colonial Beach, the average relative humidity in August is 75%.

What is the wettest month?

The wettest months in Colonial Beach are July and August, with an average 3.19" (81mm) of rainfall.

How many days does it rain in August?

In Colonial Beach, in August, during 15.3 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

What is the month with the warmest ocean?

August is the month with the warmest seawater, with an average ocean temperature of 78.4°F (25.8°C).

How warm is the water in August?

In August, the average ocean temperature is 78.4°F (25.8°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 Colonial Beach have in August?

The average day length in August is 13h and 36min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:10 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:38 pm EDT.

How many hours of sunshine does Colonial Beach have in August?

In August, the average sunshine duration is 10.1h.

When is the highest UV index?

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

How high is the UV index in August in Colonial Beach?

In August, the average daily maximum UV index in Colonial Beach is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Colonial Beach, VA

Average temperature in August - Colonial Beach, VA
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in August: 67.8°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in August
Colonial Beach, VA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Colonial Beach, VA

Average wind speed in August - Colonial Beach, VA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in August
Colonial Beach, VA

Average humidity in August - Colonial Beach, 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 April (73%).

Average rainfall in August
Colonial Beach, VA

Average rainfall in August - Colonial Beach, VA
  • Average rainfall in August: 3.19"

The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Colonial Beach, VA

Average rainfall days in August - Colonial Beach, VA
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in August
Colonial Beach, VA

Average snowfall in August - Colonial Beach, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Colonial Beach, VA

Average snowfall days in August - Colonial Beach, VA
  • Average snowfall days in August: 0 days

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

Average sea temperature in August
Colonial Beach, VA

Average sea temperature in August - Colonial Beach, VA
  • Average sea temperature in August: 78.4°F

The best month for swimming (with the highest average sea temperature) is August (78.4°F).
The coldest month (with the lowest average sea temperature) is February (47.1°F).

Average daylight in August /
Average sunshine in August
Colonial Beach, VA

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

The month with the longest days is June (Average daylight: 14h and 48min).
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 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Colonial Beach, VA

Average sunshine days in August - Colonial Beach, VA
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in August
Colonial Beach, VA

Average UV index in August - Colonial Beach, 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 and December (UV index 2).

Average cloud cover in August
Colonial Beach, VA

Average cloud cover in August - Colonial Beach, VA
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Colonial Beach, VA

Average visibility in August - Colonial Beach, VA
  • Average visibility in August: 6mi

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

Colonial Beach, Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location