July weather forecastKiawah Island, SC

Weather in July

July, the hottest month of the year in Kiawah Island sees temperatures soaring from 78.4°F (25.8°C) to 86.2°F (30.1°C). The weather is marginally different from June's, with slightly less rainfall. However, there is no respite from the humidity. Despite the scorching heat, the Island remains active with lots of available daylight hours. People prefer water-based activities to keep cool during this month.

Temperature

The warmest month is July, with an average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 78.4°F (25.8°C).

Heat index

Throughout July, the heat index is computed to be a fiery hot 98.6°F (37°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In Kiawah Island, in July, during 15.8 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Kiawah Island, during the entire year, the rain falls for 113.3 days and collects up to 10" (254mm) of precipitation.

Snowfall

February through November are months without snowfall in Kiawah Island.

Daylight

The average length of the day in July is 14h and 3min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:32 pm. On the last day of July, sunrise is at 6:34 am and sunset at 8:19 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: During July, 7 as the daily maximum UV index converts into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.