July weather forecast
Folly Beach, SC

July sees Folly Beach at its warmest with temperatures ranging between 78.4°F (25.8°C) to 86.2°F (30.1°C), marking the peak of summer. Despite the increase in humidity and cloud cover from June, July records the same amount of rainfall i.e, 1.1" (28mm). Rainfall days also rise to 15.8 days, providing much needed intermittent relief from the stifling summer heat. Similarities can be drawn between July and June regarding both daylight and sunshine hours. Wind speeds in July also remain consistent bringing a steadiness to the summer season.

Temperature

In Folly Beach, South Carolina, July is the month with the highest recorded average temperatures, measuring a high of 86.2°F (30.1°C) and a low of 78.4°F (25.8°C).

Heat index

The average heat index in July is evaluated at a torrid 98.6°F (37°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is crucial to understand that heat index figures are for shade and gentle 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 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Folly Beach, the average relative humidity in July is 76%.

Rainfall

In Folly Beach, South Carolina, during July, the rain falls for 15.8 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 113.3 rainfall days, and 10" (254mm) of precipitation is accumulated.

Snowfall

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

Ocean temperature

In July, the average ocean temperature is 82.9°F (28.3°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In Folly Beach, the average length of the day in July is 14h and 3min.
On the first day of July, sunrise is at 6:16 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:18 pm EDT.

Sunshine

With an average of 11h of sunshine, July has the most sunshine of the year.

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 health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 7 in July translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Stay aware! UV radiation is magnified when reflecting off sand and water.