August weather forecastMount Pleasant, SC
August
Weather in August
August persists with the established pattern of warmth, maintaining the dominance of summer in Mount Pleasant. Rainfall reaches its yearly peak with a considerable 8.03" (204mm) contributing to a rise in overall humidity. Amid the prevalent heat, periodic rain showers can create pleasantly cool days. Weather parameters indicate a slight dip as this month marks the slow transition from summer to autumn. Gearing up for the onset of cooler months, one can expect subtle changes in the weather factors as September approaches.Temperature
The arrival of August brings an average high-temperature of a still tropical 86.7°F (30.4°C), subtly diverging from July's 87.6°F (30.9°C). Mount Pleasant reports an average nighttime low-temperature of 77.4°F (25.2°C) in August.Heat index
The heat index in August is calculated to be a fiery hot 100.4°F (38°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In August, the average relative humidity in Mount Pleasant is 76%.Rainfall
The month with the most rainfall in Mount Pleasant is August, when the rain falls for 25.8 days and typically aggregates up to 8.03" (204mm) of precipitation.Snowfall
In Mount Pleasant, snow does not fall in March through November.Daylight
In Mount Pleasant, the average length of the day in August is 13h and 20min.On the first day of the month, sunrise is at 6:33 am and sunset at 8:17 pm. On the last day of August, in Mount Pleasant, sunrise is at 6:53 am and sunset at 7:45 pm EDT.
Sunshine
The average sunshine in August in Mount Pleasant, South Carolina, is 10.7h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 7 in August interprets into the following advice:
Ward off overexposure. Defence against solar harm is crucial. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mount Pleasant, SC
- Average high temperature in August: 86.7°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.2°F).
- Average low temperature in August: 77.4°F
The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).
Average pressure in August
Mount Pleasant, 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
Mount Pleasant, SC
- Average wind speed in August: 7.8mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in August
Mount Pleasant, SC
- Average humidity in August: 76%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in August
Mount Pleasant, SC
- Average rainfall in August: 8.03"
The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in August
Mount Pleasant, SC
- Average rainfall days in August: 25.8 days
The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in August
Mount Pleasant, SC
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.3").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Mount Pleasant, SC
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Mount Pleasant, SC
- Average daylight in August: 13h and 18min
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 42min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in August
Mount Pleasant, SC
- Average sunshine days in August: 3 days
The months with the most sunshine days are January and November (19.3 days).
The month with the least sunshine days is August (3 days).
Average UV index in August
Mount Pleasant, 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
Mount Pleasant, SC
- Average cloud cover in August: 29
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 26).
Average visibility in August
Mount Pleasant, 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).
