August weather forecast
Grimball Shores, SC

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Weather in August

The last month of the summer, August, is also a hot month in Grimball Shores, South Carolina, with an average temperature varying between 78.4°F (25.8°C) and 86°F (30°C).

Temperature

The shift into August finds Grimball Shores at an average high-temperature of a still hot 86°F (30°C), closely comparable to July's conditions. In August, Grimball Shores experiences a marginal drop in temperature, with averages of 78.4°F (25.8°C) at night.

Heat index

The average heat index in August is calculated to be a sweltering 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the sun directly might heighten the heat index 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. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of 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. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In August, the average relative humidity in Grimball Shores is 77%.

Rainfall

The month with the most rainfall in Grimball Shores is August, when the rain falls for 17.3 days and typically aggregates up to 1.93" (49mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

In August, the average length of the day in Grimball Shores, South Carolina, is 13h and 19min.
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, in Grimball Shores, sunrise is at 6:54 am and sunset at 7:45 pm EDT.

Sunshine

In August, the average sunshine is 10.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in August translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Grimball Shores during August?

August temperatures vary between a high-temperature of 86°F (30°C) and a low-temperature of 78.4°F (25.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 98.6°F (37°C).

What is the average humidity in August in Grimball Shores?

The average relative humidity in August in Grimball Shores, South Carolina, is 77%.

What is the wettest month in Grimball Shores?

The month with the most rainfall in Grimball Shores, South Carolina, is August, when the rain falls for 17.3 days and typically aggregates up to 1.93" (49mm) of precipitation.

How many days does it rain in August in Grimball Shores?

In Grimball Shores, in August, it is raining for 17.3 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Grimball Shores?

February through November are months without snowfall in Grimball Shores.

How many hours of daylight does Grimball Shores have in August?

In Grimball Shores, South Carolina, the average day length in August is 13h and 19min.

When are sunrise and sunset in August in Grimball Shores?

In August, on the first day of the month, 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 7:45 pm EDT.

How many hours of sunshine does Grimball Shores have in August?

The average sunshine duration in August in Grimball Shores, South Carolina, is 10.9h.

What is the month with the highest UV index in Grimball Shores?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Grimball Shores, South Carolina.

How high is the UV index in August in Grimball Shores?

In Grimball Shores, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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
Grimball Shores, SC

Average temperature in August - Grimball Shores, SC
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in August: 78.4°F

The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

Average pressure in August
Grimball Shores, SC

Average pressure in August - Grimball Shores, 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
Grimball Shores, SC

Average wind speed in August - Grimball Shores, SC
  • Average wind speed in August: 8.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity in August
Grimball Shores, SC

Average humidity in August - Grimball Shores, SC
  • Average humidity in August: 77%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).

Average rainfall in August
Grimball Shores, SC

Average rainfall in August - Grimball Shores, SC
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in August
Grimball Shores, SC

Average rainfall days in August - Grimball Shores, SC
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).

Average snowfall days in August
Grimball Shores, SC

Average snowfall days in August - Grimball Shores, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Grimball Shores, SC

Average daylight in August / Average sunshine in August - Grimball Shores, 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 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in August
Grimball Shores, SC

Average sunshine days in August - Grimball Shores, SC
  • Average sunshine days in August: 8.5 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).

Average UV index in August
Grimball Shores, SC

Average UV index in August - Grimball Shores, 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
Grimball Shores, SC

Average cloud cover in August - Grimball Shores, SC
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).

Average visibility in August
Grimball Shores, SC

Average visibility in August - Grimball Shores, 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).

Grimball Shores, South Carolina, USA

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