August weather forecast
Blackwater, VA

Share

Weather in August

August, the last month of the summer in Blackwater, is another warm month, with an average temperature ranging between max 83.5°F (28.6°C) and min 60.4°F (15.8°C).

Temperature

Blackwater marks the start of August with an average high-temperature of a still warm 83.5°F (28.6°C), hinting at a slight fluctuation from July's 84.6°F (29.2°C). Despite a stark disparity with daily highs, Blackwater records an average nighttime temperature of 60.4°F (15.8°C) in August.

Heat index

In August, the heat index is appraised at a tropical 91.4°F (33°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The months with the lowest humidity are August and November, with an average relative humidity of 76%.

Rainfall

In Blackwater, in August, it is raining for 16.8 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 176.3 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Snowfall

In Blackwater, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 31min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:01 pm EDT.

Sunshine

The average sunshine in August is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during August translates into the following guidance:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature during August are 83.5°F (28.6°C) and 60.4°F (15.8°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 91.4°F (33°C).

What are the least humid months?

The months with the lowest humidity are August and November, with an average relative humidity of 76%.

What is the average humidity in August?

In Blackwater, the average relative humidity in August is 76%.

How many days does it rain in August?

In Blackwater, during August, the rain falls for 16.8 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Blackwater, the average day length in August is 13h and 31min.

What time are sunrise and sunset in August?

On the first day of August in Blackwater, sunrise is at 6:38 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:01 pm EDT.

How many hours of sunshine does Blackwater have in August?

The average sunshine duration in August is 10h.

When is the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Blackwater, VA

Average temperature in August - Blackwater, VA
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in August
Blackwater, VA

Average pressure in August - Blackwater, VA
  • Average pressure in August: 30.02"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Blackwater, VA

Average wind speed in August - Blackwater, VA
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
Blackwater, VA

Average humidity in August - Blackwater, VA
  • Average humidity in August: 76%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August and November (76%).

Average rainfall in August
Blackwater, VA

Average rainfall in August - Blackwater, VA
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Blackwater, VA

Average rainfall days in August - Blackwater, VA
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in August
Blackwater, VA

Average snowfall in August - Blackwater, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Blackwater, VA

Average snowfall days in August - Blackwater, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Blackwater, VA
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Blackwater, VA

Average sunshine days in August - Blackwater, VA
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is May (10 days).

Average UV index in August
Blackwater, VA

Average UV index in August - Blackwater, 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).

Average cloud cover in August
Blackwater, VA

Average cloud cover in August - Blackwater, VA
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Blackwater, VA

Average visibility in August - Blackwater, VA
  • Average visibility in August: 5mi

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

Blackwater, Virginia, USA

Weather forecast for your location

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