August weather forecastEdisto Island, SC
August
Weather in August
August, the last month of the summer in Edisto Island, is another hot month, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 76.1°F (24.5°C).Temperature
In the transition from July to August, Edisto Island reports an average high-temperature of a still tropical 88.7°F (31.5°C), indicating a close resemblance to the prior month. In Edisto Island, the average nighttime temperature during August is a warm 76.1°F (24.5°C).Heat index
During August, the heat index is estimated at a blistering 105.8°F (41°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. 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 hold great significance to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in August in Edisto Island is 76%.Rainfall
August is the month with the most rainfall. Rain falls for 16.9 days and accumulates 1.73" (44mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In Edisto Island, the average length of the day in August is 13h and 19min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:55 am and sunset at 7:46 pm EDT.
Sunshine
In Edisto Island, South Carolina, the average sunshine in August is 10.8h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index in Edisto Island. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In August, an average UV index of 7 transforms into the following instructions:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Edisto Island, SC
- Average high temperature in August: 88.7°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (57.2°F).
- Average low temperature in August: 76.1°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 (43.2°F).
Average pressure in August
Edisto Island, SC
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in August
Edisto Island, SC
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Edisto Island, SC
- Average humidity in August: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).
Average rainfall in August
Edisto Island, SC
- Average rainfall in August: 1.73"
The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in August
Edisto Island, SC
- Average rainfall days in August: 16.9 days
The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is November (5.7 days).
Average snowfall days in August
Edisto Island, SC
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and December (0.1 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
Edisto Island, 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 6min).
- Average sunshine in August: 10h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in August
Edisto Island, SC
- Average sunshine days in August: 9.6 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is August (9.6 days).
Average UV index in August
Edisto Island, 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
Edisto Island, SC
- Average cloud cover in August: 27
The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in August
Edisto Island, 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).





