August weather forecast
Cary, NC

Share

Weather in August

As summer proceeds to its last stages, August displays marginally lower temperatures than July in Cary. Those who are heat intolerant may find relief in August's increased rainfall amounting to 2.99" (76mm). Beach visits are common due to the warm temperatures and extended daylight hours. While summer storms may occur, they are usually followed by picturesque sunsets. The beautiful, warm weather combined with summer holiday vibes makes August a favorable time for different outdoor activities.

Temperature

Welcoming August, Cary notes an average high-temperature of a still tropical 87.4°F (30.8°C), nearly consistent with July's 89.8°F (32.1°C). Throughout the month of August, Cary witnesses an average low-temperature of 69.6°F (20.9°C).

Heat index

The heat index value for August is computed to be a torrid 100.4°F (38°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 hold particular importance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Cary, North Carolina, the average relative humidity in August is 73%.

Rainfall

In Cary, during August, the rain falls for 16.8 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 161.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Cary, the average length of the day in August is 13h and 28min.
On the first day of August, sunrise is at 6:23 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:43 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Cary in August?

In Cary, 87.4°F (30.8°C) is the average high-temperature and 69.6°F (20.9°C) is the average low-temperature during August. The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 100.4°F (38°C).

What is the average humidity in August?

In Cary, the average relative humidity in August is 73%.

How much does it rain in Cary in August?

In August, the rain falls for 16.8 days. Throughout August, 2.99" (76mm) of precipitation is accumulated.

When it does not snow?

In Cary, snow does not fall in April through October.

How many hours of daylight does Cary have in August?

In Cary, the average day length in August is 13h and 28min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:23 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:43 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August in Cary is 10.3h.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Cary, NC

Average temperature in August - Cary, NC
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in August: 69.6°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in August
Cary, NC

Average pressure in August - Cary, NC
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Cary, NC

Average wind speed in August - Cary, NC
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Cary, NC

Average humidity in August - Cary, NC
  • Average humidity in August: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).

Average rainfall in August
Cary, NC

Average rainfall in August - Cary, NC
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").

Average rainfall days in August
Cary, NC

Average rainfall days in August - Cary, NC
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in August
Cary, NC

Average snowfall in August - Cary, NC
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Cary, NC

Average snowfall days in August - Cary, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Cary, NC

Average daylight in August / Average sunshine in August - Cary, NC
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in August
Cary, NC

Average sunshine days in August - Cary, NC
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Cary, NC

Average UV index in August - Cary, NC
  • Average UV index in August: 6

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

Average cloud cover in August
Cary, NC

Average cloud cover in August - Cary, NC
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Cary, NC

Average visibility in August - Cary, NC
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Cary, North Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location