August weather forecast
Marion, SC

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Weather in August

The last month of the summer, August, is another hot month in Marion, South Carolina, with an average temperature ranging between min 71.4°F (21.9°C) and max 88.3°F (31.3°C).

Temperature

Marion's average high-temperature in August is a still hot 88.3°F (31.3°C), indicating a subtle variation from July. Throughout August, Marion registers a consistent average low-temperature of 71.4°F (21.9°C).

Heat index

During August, the heat index is calculated to be an extremely hot 105.8°F (41°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

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

Rainfall

August is the month with the most rainfall. Rain falls for 19.6 days and accumulates 4.09" (104mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In August, the average length of the day in Marion is 13h and 23min.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:18 pm. On the last day of August, in Marion, sunrise is at 6:50 am and sunset at 7:44 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 6 in August transforms into this advice:
Ward off overexposure. Defence against solar harm is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The high-temperature, in August, in Marion, records 88.3°F (31.3°C), while the low-temperature is 71.4°F (21.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 105.8°F (41°C).

What is the most humid month?

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

What is the average humidity in August?

In Marion, South Carolina, the average relative humidity in August is 78%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 19.6 days and accumulates 4.09" (104mm) of precipitation.

How many days does it rain in August?

In August, the rain falls for 19.6 days. Throughout August, 4.09" (104mm) of precipitation is accumulated.

When it does not snow in Marion?

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

What is the average length of the day in August?

In August, the average day length is 13h and 23min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:29 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:44 pm EDT.

How many hours of sunshine does Marion have in August?

In Marion, the average sunshine duration in August is 10.3h.

What is the UV index reading in August?

In Marion, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Marion, SC

Average temperature in August - Marion, SC
  • Average high temperature in August: 88.3°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 (72.3°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in August
Marion, SC

Average pressure in August - Marion, SC
  • 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
Marion, SC

Average wind speed in August - Marion, SC
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Marion, SC

Average humidity in August - Marion, SC
  • Average humidity in August: 78%

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

Average rainfall in August
Marion, SC

Average rainfall in August - Marion, SC
  • Average rainfall in August: 4.09"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.54").

Average rainfall days in August
Marion, SC

Average rainfall days in August - Marion, SC
  • Average rainfall days in August: 19.6 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (8.7 days).

Average snowfall in August
Marion, SC

Average snowfall in August - Marion, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Marion, SC

Average snowfall days in August - Marion, SC
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (0.7 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
Marion, SC

Average daylight in August / Average sunshine in August - Marion, SC
  • 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 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in August
Marion, SC

Average sunshine days in August - Marion, SC
  • Average sunshine days in August: 8.9 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (8 days).

Average UV index in August
Marion, SC

Average UV index in August - Marion, SC
  • 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
Marion, SC

Average cloud cover in August - Marion, SC
  • Average cloud cover in August: 34

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
Marion, SC

Average visibility in August - Marion, SC
  • 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).

Marion, South Carolina, USA

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