August weather forecast
Marietta, NC

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Weather in August

The last month of the summer, August, is also a hot month in Marietta, North Carolina, with an average temperature ranging between min 71.4°F (21.9°C) and max 87.8°F (31°C).

Temperature

Marietta observes a minor difference in average high-temperatures between July's 89.4°F (31.9°C) and August's 87.8°F (31°C). An average low-temperature of 71.4°F (21.9°C) marks the month of August in Marietta, North Carolina.

Heat index

In August, the average heat index is evaluated at a scorching 104°F (40°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

May, June, August and September, with an average relative humidity of 78%, are the most humid months.

Rainfall

August is the month with the most rainfall. Rain falls for 18.7 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

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

Daylight

In Marietta, the average length of the day in August is 13h and 24min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:49 am and sunset at 7:43 pm EDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

Is it hot during August?

In Marietta, in August, the average high-temperature is 87.8°F (31°C), and the average low-temperature is 71.4°F (21.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 104°F (40°C).

What are the most humid months?

The months with the highest humidity are May, June, August and September, with an average relative humidity of 78%.

What is the average humidity in August?

In Marietta, the average relative humidity in August is 78%.

What is the rainiest month?

August is the month with the most rainfall in Marietta. Rain falls for 18.7 days and accumulates 3.74" (95mm) of precipitation.

How many days does it rain in August?

In Marietta, in August, during 18.7 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow?

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 24min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:27 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:43 pm EDT.

How many hours of sunshine does Marietta have in August?

In August, the average sunshine duration is 10.4h.

What is the UV index reading in August?

In Marietta, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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, NC

Average temperature in August - Marietta, NC
  • Average high temperature in August: 87.8°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in August: 71.4°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average pressure in August
Marietta, NC

Average pressure in August - Marietta, NC
  • Average pressure in August: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Marietta, NC

Average wind speed in August - Marietta, NC
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in August
Marietta, NC

Average humidity in August - Marietta, NC
  • Average humidity in August: 78%

The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).

Average rainfall in August
Marietta, NC

Average rainfall in August - Marietta, NC
  • Average rainfall in August: 3.74"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days in August
Marietta, NC

Average rainfall days in August - Marietta, NC
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in August
Marietta, NC

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

The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Marietta, NC

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

The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in August / Average sunshine in August - Marietta, NC
  • 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: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in August
Marietta, NC

Average sunshine days in August - Marietta, NC
  • Average sunshine days in August: 9.7 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.2 days).

Average UV index in August
Marietta, NC

Average UV index in August - Marietta, NC
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in August
Marietta, NC

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

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in August
Marietta, NC

Average visibility in August - Marietta, NC
  • 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).

Marietta, North Carolina, USA

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