August weather forecast
Sandy, SC

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Weather in August

August, the last month of the summer in Sandy, is another hot month, with an average temperature varying between 88.3°F (31.3°C) and 76.3°F (24.6°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still hot 88.3°F (31.3°C), not significantly different from the 89.6°F (32°C) of July. During the month of August, the temperature generally drops to a low average of 76.3°F (24.6°C).

Heat index

In August, the heat index is computed to be an extremely hot 104°F (40°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In August, the average relative humidity is 76%.

Rainfall

August is the month with the most rainfall. Rain falls for 22.7 days and accumulates 4.29" (109mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

The average length of the day in August is 13h and 20min.
On the first day of the month, sunrise is at 6:34 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:54 am and sunset at 7:46 pm EDT.

Sunshine

The average sunshine in August in Sandy is 10.7h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Sandy. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 7 during August translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Sandy in August?

The high-temperature during August is 88.3°F (31.3°C) and the low-temperature is 76.3°F (24.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 104°F (40°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 22.7 days and accumulates 4.29" (109mm) of precipitation.

How many days does it rain in August?

In August, the rain falls for 22.7 days. Throughout August, 4.29" (109mm) of precipitation is accumulated.

When it does not snow?

March through November are months without snowfall.

What is the average length of the day in August?

In Sandy, the average day length in August is 13h and 20min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:34 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:46 pm EDT.

How long on average sun shines in August?

In Sandy, the average sunshine duration in August is 10.7h.

What is the month with the highest UV index in Sandy?

May through August, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in August?

In Sandy, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sandy, SC

Average temperature in August - Sandy, SC
  • Average high temperature in August: 88.3°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 (56.8°F).

  • Average low temperature in August: 76.3°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

Average pressure in August
Sandy, SC

Average pressure in August - Sandy, SC
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in August
Sandy, SC

Average wind speed in August - Sandy, SC
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Sandy, SC

Average humidity in August - Sandy, SC
  • Average humidity in August: 76%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

Average rainfall in August
Sandy, SC

Average rainfall in August - Sandy, SC
  • Average rainfall in August: 4.29"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in August
Sandy, SC

Average rainfall days in August - Sandy, SC
  • Average rainfall days in August: 22.7 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

Average snowfall days in August
Sandy, SC

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

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Sandy, SC

Average daylight in August / Average sunshine in August - Sandy, SC
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 10h and 4min

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

Average sunshine days in August
Sandy, SC

Average sunshine days in August - Sandy, SC
  • Average sunshine days in August: 6.1 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

Average UV index in August
Sandy, SC

Average UV index in August - Sandy, SC
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in August
Sandy, SC

Average cloud cover in August - Sandy, SC
  • Average cloud cover in August: 29

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in August
Sandy, SC

Average visibility in August - Sandy, 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).

Sandy, South Carolina, USA

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