August weather forecast
Chapel Hill, NC

In August, Chapel Hill's weather starts showing the subtle signals of an approaching transition into fall. While August continues to register high temperatures much like July, there is a slight dip, creating an inkling of cooling. The near-constant humidity level adds a certain heaviness to the air. Occasional rain showers grace the landscape, contributing to the overall freshness. Considered one of the last full-fledged summer months, August sees the city squeezing out the last of summer joy before transitioning into the cooler season.

Temperature

The transition into August in Chapel Hill shows a subtle variation to a still tropical 88°F (31.1°C) from July's 90.3°F (32.4°C) in the average high-temperature. Chapel Hill, in the month of August, anticipates a consistent average low-temperature of 68.7°F (20.4°C).

Heat index

The heat index in August is computed to be a fiery hot 102.2°F (39°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In August, the average relative humidity in Chapel Hill is 74%.

Rainfall

In Chapel Hill, North Carolina, in August, during 14.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, in Chapel Hill, there are 130 rainfall days, and 14.21" (361mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Chapel Hill.

Daylight

In Chapel Hill, North Carolina, the average length of the day in August is 13h and 29min.
On the first day of August, sunrise is at 6:24 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:44 pm EDT.

Sunshine

In Chapel Hill, the average sunshine in August is 10.2h.

UV index

In Chapel Hill, North Carolina, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.