July weather forecast
North Charleston, SC

As far as North Charleston's weather goes, July marks the peak of summer with the highest temperature averages for the year. Expect temperatures to settle between 76.5°F (24.7°C) at its lowest and 89.6°F (32°C) at its highest. This weather is the warmest of the year, surpassing the conditions of June while hinting at the subsequent cooling trend of August. Despite the heat, the city maintains a cheerful atmosphere owing to extravagant Fourth of July celebrations. Beachgoers and sun-seekers can look forward to maximum sunshine hours and a heightened UV index during the long summer days.

Temperature

North Charleston experiences its highest average temperatures in July, reaching a peak of 89.6°F (32°C) and a minimum of 76.5°F (24.7°C).

Heat index

For July, the heat index is computed to be a scorching 107.6°F (42°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In North Charleston, the average relative humidity in July is 74%.

Rainfall

In July, the rain falls for 21.2 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in North Charleston, there are 154.4 rainfall days, and 23.43" (595mm) of precipitation is accumulated.

Snowfall

In North Charleston, snow does not fall in March through November.

Daylight

The average length of the day in July in North Charleston is 14h and 4min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:32 pm. On the last day of July, sunrise is at 6:33 am and sunset at 8:19 pm EDT.

Sunshine

With an average of 10.9h of sunshine, July has the most sunshine of the year in North Charleston.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 7 in July translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.