August weather forecast
Dunwoody, GA

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Weather in August

August brings the tail end of summer to Dunwoody, although the heat rarely subsides. Although it may not appear so, this month brings slight relief from July’s startling heat. Sunshine-filled days pervade most of the month, occasionally making way for some much-needed rainfall. A notable characteristic is the slight decrease in daylight hours from 14.2 hours in July to 13.4 hours in August. Despite this, the month remains true to the essence of summer, with its lingering heat and outdoor events.

Temperature

The start of August in Dunwoody sees the average high-temperature at a still tropical 89.6°F (32°C), showing little difference from July's 90.5°F (32.5°C). Throughout the month of August, Dunwoody sees a steady low-temperature average of 70.5°F (21.4°C).

Heat index

The average heat index in August is appraised at a blisteringly hot 104°F (40°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 68%.

Rainfall

The month with the most rainfall in Dunwoody, Georgia, is August, when the rain falls for 19.7 days and typically aggregates up to 5.16" (131mm) of precipitation.

Snowfall

In Dunwoody, Georgia, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:49 am and sunset at 8:37 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:04 pm EDT.

Sunshine

The average sunshine in August in Dunwoody is 9.3h.

UV index

With an average maximum UV index of 7, August is the month 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, the maximum UV index of 7 suggests this advice:
Take precautions against overexposure. Protection against sun damage is needed. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

How hot does it get in Dunwoody in August?

The average high-temperature, in August, in Dunwoody, is 89.6°F (32°C), while the average low-temperature is 70.5°F (21.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 104°F (40°C).

What are the least humid months in Dunwoody?

The months with the lowest humidity are July and August, with an average relative humidity of 68%.

What is the average humidity in August in Dunwoody?

The average relative humidity in August is 68%.

What is the wettest month in Dunwoody?

The month with the most rainfall in Dunwoody, Georgia, is August, when the rain falls for 19.7 days and typically aggregates up to 5.16" (131mm) of precipitation.

How many days does it rain in August in Dunwoody?

In Dunwoody, in August, it is raining for 19.7 days, with typically 5.16" (131mm) of accumulated precipitation.

When it does not snow in Dunwoody?

In Dunwoody, Georgia, snow does not fall in April through October.

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

In August, the average day length in Dunwoody is 13h and 23min.

When are sunrise and sunset in August in Dunwoody?

In August, on the first day of the month, sunrise is at 6:49 am and sunset at 8:37 pm. On the last day of the month, in Dunwoody, Georgia, sunrise is at 7:10 am and sunset at 8:04 pm EDT.

How long on average sun shines in August in Dunwoody?

In August, the average sunshine duration in Dunwoody is 9.3h.

What is the month with the highest UV index in Dunwoody?

With an average maximum UV index of 7, August is the month with the highest UV index in Dunwoody, Georgia.

How high is the UV index in August in Dunwoody?

In Dunwoody, Georgia, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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
Dunwoody, GA

Average temperature in August - Dunwoody, GA
  • Average high temperature in August: 89.6°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in August: 70.5°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in August
Dunwoody, GA

Average pressure in August - Dunwoody, GA
  • Average pressure in August: 30.01"Hg

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

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Average wind speed in August
Dunwoody, GA

Average wind speed in August - Dunwoody, GA
  • Average wind speed in August: 4.6mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in August
Dunwoody, GA

Average humidity in August - Dunwoody, GA
  • Average humidity in August: 68%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).

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Average rainfall in August
Dunwoody, GA

Average rainfall in August - Dunwoody, GA
  • Average rainfall in August: 5.16"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in August
Dunwoody, GA

Average rainfall days in August - Dunwoody, GA
  • Average rainfall days in August: 19.7 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (9.5 days).

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Average snowfall in August
Dunwoody, GA

Average snowfall in August - Dunwoody, GA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Dunwoody, GA

Average snowfall days in August - Dunwoody, GA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (1.4 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
Dunwoody, GA

Average daylight in August / Average sunshine in August - Dunwoody, GA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in August
Dunwoody, GA

Average sunshine days in August - Dunwoody, GA
  • Average sunshine days in August: 9.1 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (7.7 days).

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Average UV index in August
Dunwoody, GA

Average UV index in August - Dunwoody, GA
  • Average UV index in August: 7

The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in August
Dunwoody, GA

Average cloud cover in August - Dunwoody, GA
  • Average cloud cover in August: 33

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Dunwoody, GA

Average visibility in August - Dunwoody, GA
  • 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).

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Dunwoody, Georgia, USA

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