August weather forecast
Columbia, VA

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Weather in August

August, the last month of the summer in Columbia, is also a hot month, with an average temperature varying between 86.9°F (30.5°C) and 64.6°F (18.1°C).

Temperature

Columbia's entry into August measures an average high-temperature of a still tropical 86.9°F (30.5°C), closely parallel to the preceding month. Throughout August, Columbia notes a dramatic plunge from the daily high to an average low-temperature of 64.6°F (18.1°C).

Heat index

August's average heat index is appraised at a sweltering 98.6°F (37°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In August, the average relative humidity in Columbia is 72%.

Rainfall

In August, the rain falls for 13.5 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. In Columbia, Virginia, during the entire year, the rain falls for 142.4 days and collects up to 25.51" (648mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 35min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:21 pm. On the last day of August, in Columbia, sunrise is at 6:42 am and sunset at 7:42 pm EDT.

Sunshine

The average sunshine in August in Columbia is 10.3h.

UV index

The months with the highest UV index in Columbia are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot does it get in Columbia in August?

In Columbia, in August, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 64.6°F (18.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in August in Columbia?

In Columbia, Virginia, the average relative humidity in August is 72%.

How many days does it rain in August in Columbia?

In Columbia, in August, it is raining for 13.5 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow in Columbia?

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

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

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

When is the sunrise / sunset in August in Columbia?

In August, on the first day of the month, sunrise is at 6:16 am and sunset at 8:21 pm. On the last day of the month, in Columbia, sunrise is at 6:42 am and sunset at 7:42 pm EDT.

How many hours of sunshine does Columbia have in August?

In Columbia, Virginia, the average sunshine duration in August is 10.3h.

When is the highest UV index in Columbia?

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 in Columbia?

In Columbia, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average max. wind speed
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
Columbia, VA

Average temperature in August - Columbia, VA
  • Average high temperature in August: 86.9°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (43°F).

  • Average low temperature in August: 64.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in August
Columbia, VA

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

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in August
Columbia, VA

Average wind speed in August - Columbia, VA
  • Average wind speed in August: 4.3mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in August
Columbia, VA

Average humidity in August - Columbia, VA
  • Average humidity in August: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in August
Columbia, VA

Average rainfall in August - Columbia, VA
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in August
Columbia, VA

Average rainfall days in August - Columbia, VA
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in August
Columbia, VA

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

The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Columbia, VA

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

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Columbia, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in August
Columbia, VA

Average sunshine days in August - Columbia, VA
  • Average sunshine days in August: 15.6 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in August
Columbia, VA

Average UV index in August - Columbia, 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, November and December (UV index 2).

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Average cloud cover in August
Columbia, VA

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

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Columbia, VA

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

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

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Columbia, Virginia, USA

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