August weather forecast
Keswick, VA

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Weather in August

The last month of the summer, August, is another warm month in Keswick, Virginia, with an average temperature fluctuating between 85.6°F (29.8°C) and 63.3°F (17.4°C).

Temperature

Keswick, Virginia, experiences an average high-temperature of a moderately hot 85.6°F (29.8°C) in August, subtly different from July's 88.2°F (31.2°C). Keswick demonstrates a significant disparity from daytime highs throughout the month of August, with an average nighttime temperature of 63.3°F (17.4°C).

Heat index

August's average heat index is estimated at a fiery hot 96.8°F (36°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in August is 74%.

Rainfall

In Keswick, in August, during 16.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Keswick, during the entire year, the rain falls for 155.9 days and collects up to 27.99" (711mm) of precipitation.

Snowfall

In Keswick, snow does not fall in May through October.

Daylight

In Keswick, Virginia, the average length of the day in August is 13h and 35min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:43 am and sunset at 7:44 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

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 threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Keswick?

The average high-temperature, in August, in Keswick, is 85.6°F (29.8°C), while the average low-temperature is 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 96.8°F (36°C).

What is the average humidity in August in Keswick?

The average relative humidity in August in Keswick, Virginia, is 74%.

How many days does it rain in August in Keswick?

In Keswick, in August, during 16.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Keswick?

In Keswick, Virginia, snow does not fall in May through October.

How many hours of daylight does Keswick have in August?

The average day length in August in Keswick, Virginia, is 13h and 35min.

When is the sunrise / sunset in August in Keswick?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:44 pm EDT.

How long on average sun shines in August in Keswick?

In Keswick, the average sunshine duration in August is 10.2h.

What are the months with the highest UV index in Keswick?

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

What is the UV index reading in August in Keswick?

The average daily maximum UV index in August in Keswick, Virginia, is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Keswick, VA

Average temperature in August - Keswick, VA
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
Keswick, VA

Average pressure in August - Keswick, VA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Keswick, VA

Average wind speed in August - Keswick, VA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in August
Keswick, VA

Average humidity in August - Keswick, VA
  • Average humidity in August: 74%

The months with the highest relative humidity are May, September, October and December (76%).
The month with the lowest relative humidity is July (71%).

Average rainfall in August
Keswick, VA

Average rainfall in August - Keswick, VA
  • Average rainfall in August: 2.68"

The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is January (1.69").

Average rainfall days in August
Keswick, VA

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

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in August
Keswick, VA

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

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Keswick, VA

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

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Keswick, 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 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

Average sunshine days in August
Keswick, VA

Average sunshine days in August - Keswick, VA
  • Average sunshine days in August: 12 days

The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in August
Keswick, VA

Average UV index in August - Keswick, 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
Keswick, VA

Average cloud cover in August - Keswick, VA
  • Average cloud cover in August: 34

The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).

Average visibility in August
Keswick, VA

Average visibility in August - Keswick, VA
  • Average visibility in August: 6mi

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

Keswick, Virginia, USA

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