August weather forecast and climate
Atlanta, GA

Beautiful sky and cityscape of Atlanta in Georgia, USA
Beautiful sky and cityscape of Atlanta in Georgia, USA
The last month of the summer, August, is another tropical month in Atlanta, Georgia, with average temperature fluctuating between 70.7°F (21.5°C) and 89.2°F (31.8°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still hot 89.2°F (31.8°C). In Atlanta, the average low-temperature is 70.7°F (21.5°C).

Heat index

In August, the average heat index is estimated at a sweltering 103.1°F (39.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, pregnancy, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

Months with the lowest humidity are July and August, with an average relative humidity of 69%.

Rainfall

The month with the most rainfall in Atlanta, Georgia, is August when the rain falls for 17.1 days and typically aggregates up to 2.32" (59mm) of precipitation.

Snowfall

In Atlanta snow does not fall in April through November.

Daylight

In Atlanta, the average length of the day is 13.4h.

Sunshine

In Atlanta, the average sunshine in August is 9.6h.

UV index

The month with the highest UV index in Atlanta, Georgia, is August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Atlanta?

The average high-temperature, in August, is 89.2°F (31.8°C), while the average low-temperature is 70.7°F (21.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines both air temperature and relative humidity, is estimated at 103.1°F (39.5°C).

What is the least humid month in Atlanta?

Months with the lowest humidity in Atlanta, Georgia, are July and August, with an average relative humidity of 69%.

What is the average humidity in August in Atlanta?

In August, the average relative humidity in Atlanta, Georgia, is 69%.

How much does it rain in Atlanta in August?

In Atlanta, in August, during 17.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

What is the rainiest month in Atlanta?

August is the month with the most rainfall in Atlanta. Rain falls for 17.1 days and accumulates 2.32" (59mm) of precipitation.

When it does not snow in Atlanta?

April through November are months without snowfall in Atlanta, Georgia.

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

In August, the average length of the day in Atlanta, Georgia, is 13.4h.

How long on average sun shines in August in Atlanta?

In August, the average sunshine in Atlanta is 9.6h.

When is the highest UV index in Atlanta?

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

How high is the UV index in August in Atlanta?

In Atlanta, the average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in August - Atlanta, GA
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in August: 70.7°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in August - Atlanta, GA
  • Average pressure in August: 30"

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

Average wind speed in August - Atlanta, GA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in August - Atlanta, GA
  • Average humidity in August: 69%

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

Average rainfall in August - Atlanta, GA
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is August (2.32").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in August - Atlanta, GA
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is November (6.9 days).

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

The month with the highest snowfall is February (0.2").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is February (0.9 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Atlanta, GA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 9.6h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.1h).

Average sunshine days in August - Atlanta, GA
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (10.9 days).

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

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

Average cloud cover in August - Atlanta, GA
  • Average cloud cover in August: 32

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August - Atlanta, GA
  • Average visibility in August: 6mi

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