August weather forecast
Atlanta, IL

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Weather in August

August, the last month of the summer in Atlanta, is also a moderately hot month, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 81.1°F (27.3°C).

Temperature

August's onset records a minor alteration in the average high-temperature to a still moderately hot 81.1°F (27.3°C) from July's 81.5°F (27.5°C). Atlanta, during the month of August, experiences an average low-temperature of 63.5°F (17.5°C).

Heat index

August's mean heat index is appraised at a hot 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In Atlanta, the average relative humidity in August is 82%.

Rainfall

In Atlanta, during August, the rain falls for 13.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 135 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 43min.
On the first day of August, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:29 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Atlanta?

In Atlanta, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 82%.

How many days does it rain in August?

In Atlanta, in August, it is raining for 13.3 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Atlanta have in August?

In August, the average day length is 13h and 43min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:29 pm CDT.

How long on average sun shines in August in Atlanta?

In August, the average sunshine duration is 9.8h.

What are the months with the highest UV index?

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

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Atlanta, IL

Average temperature in August - Atlanta, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in August
Atlanta, IL

Average pressure in August - Atlanta, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Atlanta, IL

Average wind speed in August - Atlanta, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Atlanta, IL

Average humidity in August - Atlanta, IL
  • Average humidity in August: 82%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Atlanta, IL

Average rainfall in August - Atlanta, IL
  • Average rainfall in August: 1.65"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in August
Atlanta, IL

Average rainfall days in August - Atlanta, IL
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in August
Atlanta, IL

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

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Atlanta, IL

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

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Atlanta, IL

Average daylight in August / Average sunshine in August - Atlanta, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Atlanta, IL

Average sunshine days in August - Atlanta, IL
  • Average sunshine days in August: 14.3 days

The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in August
Atlanta, IL

Average UV index in August - Atlanta, IL
  • Average UV index in August: 6

The months with the highest UV index are 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
Atlanta, IL

Average cloud cover in August - Atlanta, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in August
Atlanta, IL

Average visibility in August - Atlanta, IL
  • Average visibility in August: 5mi

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

Atlanta, Illinois, USA

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