August weather forecast
Chapel Hill, NC

Red flowers and green trees around the Old Well at the iconic UNC in Chapel Hill, North Carolina
Red flowers and green trees around the Old Well at the iconic UNC in Chapel Hill, North Carolina

Weather in August

August, the last month of the summer, in Chapel Hill, is another tropical month, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 88°F (31.1°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still tropical 88°F (31.1°C). The average low-temperature, in August, is 68.7°F (20.4°C).

Heat index

The average heat index is evaluated at a torrid 102.4°F (39.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, metabolic differences, wind). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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 August, the average relative humidity in Chapel Hill is 74%.

Rainfall

In Chapel Hill, during 14.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, 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

The average length of the day in Chapel Hill is 13.5h.

Sunshine

The average sunshine in Chapel Hill is 10.2h.

UV index

The average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the temperature in August in Chapel Hill?

In August, in Chapel Hill, North Carolina, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 68.7°F (20.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 102.4°F (39.1°C).

What is the average humidity in August in Chapel Hill?

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

How much does it rain in Chapel Hill in August?

In Chapel Hill, North Carolina, in August, during 14.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Chapel Hill?

April through October are months without snowfall.

How many hours of daylight does Chapel Hill have in August?

In August, the average length of the day in Chapel Hill, North Carolina, is 13.5h.

How long on average sun shines in August in Chapel Hill?

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

How high is the UV index in August in Chapel Hill?

In Chapel Hill, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in August
Chapel Hill, NC

Average temperature in August - Chapel Hill, NC
  • Average high temperature in August: 31.1°C

The warmest month (with the highest average high temperature) is July (32.4°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in August: 20.4°C

The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (0°C).

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Average pressure in August
Chapel Hill, NC

Average pressure in August - Chapel Hill, NC
  • Average pressure in August: 1015.8mbar

The month with the highest atmospheric pressure is November (1021mbar).
The month with the lowest atmospheric pressure is June (1014.7mbar).

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Average wind speed in August
Chapel Hill, NC

Average wind speed in August - Chapel Hill, NC
  • Average wind speed in August: 7.6km/h

The windiest month (with the highest average wind speed) is April (11.8km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).

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Average humidity in August
Chapel Hill, NC

Average humidity in August - Chapel Hill, NC
  • Average humidity in August: 74%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in August
Chapel Hill, NC

Average rainfall in August - Chapel Hill, NC
  • Average rainfall in August: 44mm

The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is October (21mm).

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Average rainfall days in August
Chapel Hill, NC

Average rainfall days in August - Chapel Hill, NC
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is November (6.4 days).

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Average snowfall in August
Chapel Hill, NC

Average snowfall in August - Chapel Hill, NC
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (12mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in August
Chapel Hill, NC

Average snowfall days in August - Chapel Hill, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.5 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Chapel Hill, NC

Average daylight in August / Average sunshine in August - Chapel Hill, NC
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in August: 10.2h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in August
Chapel Hill, NC

Average sunshine days in August - Chapel Hill, NC
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is October (22.3 days).
Months with the least sunshine days are July and August (12.8 days).

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Average UV index in August
Chapel Hill, NC

Average UV index in August - Chapel Hill, NC
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in August
Chapel Hill, NC

Average cloud cover in August - Chapel Hill, NC
  • Average cloud cover in August: 34

Months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in August
Chapel Hill, NC

Average visibility in August - Chapel Hill, NC
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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