August weather forecast
Jacksonville, NC

Weather in August

The last month of the summer, August, is another hot month in Jacksonville, North Carolina, with an average temperature fluctuating between 73°F (22.8°C) and 87.6°F (30.9°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still hot 87.6°F (30.9°C). In Jacksonville, the average low-temperature is 73°F (22.8°C).

Heat index

The average heat index in August is computed to be an extremely hot 104°F (40°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, metabolic differences, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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. 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

August, September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

August is the month with the most rainfall in Jacksonville. Rain falls for 21 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

In Jacksonville, snow does not fall in March through December.

Daylight

The average length of the day in August is 13h and 25min.
On the first day of August in Jacksonville, sunrise is at 6:19 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:38 pm EDT.

Sunshine

In Jacksonville, the average sunshine in August is 10.5h.

UV index

In August, the average daily maximum UV index in Jacksonville is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun 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.
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FAQ

What is the temperature in August in Jacksonville?

The average high-temperature, in August, is 87.6°F (30.9°C), while the average low-temperature is 73°F (22.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 104°F (40°C).

What is the most humid month in Jacksonville?

The months with the highest humidity in Jacksonville are August, September and December, with an average relative humidity of 77%.

What is the average humidity in August in Jacksonville?

In August, the average relative humidity in Jacksonville is 77%.

What is the wettest month in Jacksonville?

August is the month with the most rainfall in Jacksonville, North Carolina. Rain falls for 21 days and accumulates 3.43" (87mm) of precipitation.

How many days does it rain in August in Jacksonville?

In Jacksonville, in August, it is raining for 21 days, with typically 3.43" (87mm) of accumulated precipitation.

When it does not snow in Jacksonville?

In Jacksonville, North Carolina, snow does not fall in March through December.

What is the average length of the day in August in Jacksonville?

In Jacksonville, North Carolina, the average day length in August is 13h and 25min.

When are sunrise and sunset in August in Jacksonville?

In August, on the first day of the month, sunrise is at 6:19 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:38 pm EDT.

How long on average sun shines in August in Jacksonville?

In August, the average sunshine duration is 10.5h.

What is the UV index intensity in August in Jacksonville?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Jacksonville, NC

Average temperature in August - Jacksonville, NC
  • Average high temperature in August: 87.6°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (52.9°F).

  • Average low temperature in August: 73°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in August
Jacksonville, NC

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in August
Jacksonville, NC

Average wind speed in August - Jacksonville, NC
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in August
Jacksonville, NC

Average humidity in August - Jacksonville, NC
  • Average humidity in August: 77%

The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January, February, March and April (73%).

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Average rainfall in August
Jacksonville, NC

Average rainfall in August - Jacksonville, NC
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in August
Jacksonville, NC

Average rainfall days in August - Jacksonville, NC
  • Average rainfall days in August: 21 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in August
Jacksonville, NC

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

The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Jacksonville, NC

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

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in August / Average sunshine in August - Jacksonville, NC
  • Average daylight in August: 13h and 25min

The month with the longest days is June (Average daylight: 14h and 27min).
The month with the shortest days is December (Average daylight: 9h and 52min).

  • Average sunshine in August: 10h and 30min

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

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Average sunshine days in August
Jacksonville, NC

Average sunshine days in August - Jacksonville, NC
  • Average sunshine days in August: 6.7 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (6.7 days).

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Average UV index in August
Jacksonville, NC

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
Jacksonville, NC

Average cloud cover in August - Jacksonville, NC
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 28).

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Average visibility in August
Jacksonville, NC

Average visibility in August - Jacksonville, 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).

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