August weather forecast
Folly Beach, SC

August in Folly Beach tends to mirror July in terms of temperatures, remaining within the range of 78.4°F (25.8°C)-86°F (-65.6°C). In relation to the previous month, there is a significant rise in rainfall in August, with the city experiencing its maximum rainfall of 1.93" (49mm). With an increase in cloud coverage and rainfall, August marks the period of the year with the highest atmospheric pressure, 29.99 in. Despite identical daylight hours, a minor decline can be noticed in the sunshine hours, from July to August.

Temperature

August's arrival in Folly Beach brings an average high-temperature of a still hot 86°F (30°C), slightly deviating from July's 86.2°F (30.1°C). Folly Beach observes a consistent average low-temperature of 78.4°F (25.8°C) throughout August nights.

Heat index

For August, the heat index is estimated at a torrid 98.6°F (37°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Folly Beach, the average relative humidity in August is 77%.

Rainfall

August is the month with the most rainfall in Folly Beach. Rain falls for 17.3 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

In Folly Beach, snow does not fall in February through November.

Ocean temperature

August is the month with the warmest seawater in Folly Beach, with an average ocean temperature of 83.5°F (28.6°C).
Note: For swimming, diving, or other water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) provide the most enjoyable experience for extended periods without discomfort.

Daylight

In August, the average length of the day is 13h and 19min.
On the first day of the month, sunrise is at 6:34 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:54 am and sunset at 7:45 pm EDT.

Sunshine

In August, the average sunshine is 10.9h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 in August converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The Sun's UV intensity grows with reflections off sand and water.