August weather forecast
Suwanee, GA

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Weather in August

August, the last month of the summer in Suwanee, is another tropical month, with an average temperature ranging between max 88.5°F (31.4°C) and min 69.1°F (20.6°C).

Temperature

Suwanee's weather in August displays an average high-temperature of a still tropical 88.5°F (31.4°C), showing minor disparity from July's 89.6°F (32°C). August brings Suwanee a consistent average low-temperature of 69.1°F (20.6°C).

Heat index

The average heat index in August is estimated at a very hot 102.2°F (39°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The months with the lowest humidity are July through September, with an average relative humidity of 71%.

Rainfall

August is the month with the most rainfall. Rain falls for 19 days and accumulates 4.49" (114mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:36 pm. On the last day of August, sunrise is at 7:09 am and sunset at 8:03 pm EDT.

Sunshine

In Suwanee, the average sunshine in August is 9.4h.

UV index

May 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 the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

August temperatures vary between a high-temperature of 88.5°F (31.4°C) and a low-temperature of 69.1°F (20.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 102.2°F (39°C).

What are the least humid months?

July through September, with an average relative humidity of 71%, are the least humid months in Suwanee.

What is the average humidity in August?

The average relative humidity in August is 71%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 19 days and accumulates 4.49" (114mm) of precipitation.

How many days does it rain in August?

In Suwanee, in August, during 19 rainfall days, 4.49" (114mm) of precipitation is typically accumulated.

When it does not snow?

In Suwanee, snow does not fall in April through October.

How many hours of daylight does Suwanee have in August?

The average day length in August is 13h and 23min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:48 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 8:03 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.4h.

What are the months with the highest UV index?

May 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?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Suwanee, GA

Average temperature in August - Suwanee, GA
  • Average high temperature in August: 88.5°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 (49.1°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).

Average pressure in August
Suwanee, GA

Average pressure in August - Suwanee, 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).

Average wind speed in August
Suwanee, GA

Average wind speed in August - Suwanee, GA
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in August
Suwanee, GA

Average humidity in August - Suwanee, GA
  • Average humidity in August: 71%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August and September (71%).

Average rainfall in August
Suwanee, GA

Average rainfall in August - Suwanee, GA
  • Average rainfall in August: 4.49"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is October (2.28").

Average rainfall days in August
Suwanee, GA

Average rainfall days in August - Suwanee, GA
  • Average rainfall days in August: 19 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is October (10 days).

Average snowfall in August
Suwanee, GA

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

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

Average snowfall days in August
Suwanee, GA

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

The month with the highest number of snowfall days is February (1.7 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
Suwanee, GA

Average daylight in August / Average sunshine in August - Suwanee, 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 months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
Suwanee, GA

Average sunshine days in August - Suwanee, GA
  • Average sunshine days in August: 10.6 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in August
Suwanee, GA

Average UV index in August - Suwanee, GA
  • 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 and December (UV index 2).

Average cloud cover in August
Suwanee, GA

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

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Suwanee, GA

Average visibility in August - Suwanee, 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).

Suwanee, Georgia, USA

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