August weather forecast
Marietta, GA

englishespañol中文
Share

Weather in August

Marietta in August witnesses a slight dip in temperature, giving respite from July's intense heat. Accompanying the end of August, there is a substantial increase in rainfall - about 4.88" (124mm) - preparing the way for falls. The transition into September carries a promise of slightly cooler days to come. Refreshing breezes can be felt in the evenings, rendering a picturesque sunset view. While the days remain warm, cooling showers offer a wonderful break from the summer heat.

Temperature

August in Marietta begins with an average high-temperature of a still hot 89.4°F (31.9°C), reflecting close similarity to the preceding month. Marietta experiences an average temperature drop to a pleasant 70.3°F (21.3°C) during August nights.

Heat index

For August, the heat index is computed to be a sweltering 102.2°F (39°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

August is the least humid month, with an average relative humidity of 68%.

Rainfall

August is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.88" (124mm) of precipitation.

Snowfall

In Marietta, snow does not fall in April through November.

Daylight

In August, the average length of the day in Marietta is 13h and 23min.
On the first day of August in Marietta, sunrise is at 6:50 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:04 pm EDT.

Sunshine

In August, the average sunshine is 9.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
[Resources]

Frequently asked questions

How hot does it get in Marietta in August?

The average high-temperature and low-temperature in Marietta during August are 89.4°F (31.9°C) and 70.3°F (21.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 102.2°F (39°C).

What is the least humid month in Marietta?

With an average relative humidity of 68%, August is the least humid month in Marietta.

What is the average humidity in August in Marietta?

In August, the average relative humidity in Marietta, Georgia, is 68%.

What is the wettest month in Marietta?

The month with the most rainfall in Marietta, Georgia, is August, when the rain falls for 18.8 days and typically aggregates up to 4.88" (124mm) of precipitation.

How many days does it rain in August in Marietta?

In Marietta, Georgia, in August, during 18.8 rainfall days, 4.88" (124mm) of precipitation is typically accumulated.

When it does not snow in Marietta?

In Marietta, snow does not fall in April through November.

How many hours of daylight does Marietta have in August?

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

When is the sunrise / sunset in August in Marietta?

In August, on the first day of the month, sunrise is at 6:50 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:04 pm EDT.

How many hours of sunshine does Marietta have in August?

The average sunshine duration in August in Marietta is 9.3h.

When is the highest UV index in Marietta?

The months with the highest UV index in Marietta are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Marietta?

In Marietta, Georgia, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Marietta, GA

Average temperature in August - Marietta, GA
  • Average high temperature in August: 89.4°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: 70.3°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 (34.2°F).

[Resources]

Average pressure in August
Marietta, GA

Average pressure in August - Marietta, GA
  • Average pressure in August: 30"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).

[Resources]

Average wind speed in August
Marietta, GA

Average wind speed in August - Marietta, GA
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

[Resources]

Average humidity in August
Marietta, GA

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

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is August (68%).

[Resources]

Average rainfall in August
Marietta, GA

Average rainfall in August - Marietta, GA
  • Average rainfall in August: 4.88"

The wettest month (with the highest rainfall) is August (4.88").
The driest month (with the least rainfall) is October (2.24").

[Resources]

Average rainfall days in August
Marietta, GA

Average rainfall days in August - Marietta, GA
  • Average rainfall days in August: 18.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.5 days).

[Resources]

Average snowfall in August
Marietta, GA

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

The month with the highest snowfall is January (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

[Resources]

Average snowfall days in August
Marietta, GA

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

The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Marietta, GA

Average daylight in August / Average sunshine in August - Marietta, 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).

[Resources]

Average sunshine days in August
Marietta, GA

Average sunshine days in August - Marietta, GA
  • Average sunshine days in August: 9.9 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (9.6 days).

[Resources]

Average UV index in August
Marietta, GA

Average UV index in August - Marietta, 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, February, November and December (UV index 3).

[Resources]

Average cloud cover in August
Marietta, GA

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

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 31).

[Resources]

Average visibility in August
Marietta, GA

Average visibility in August - Marietta, 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).

[Resources]

Marietta, Georgia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location