August weather forecast
Wilmington, NC

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A creative creation on a large field in Wilmington, North Carolina
A creative creation on a large field in Wilmington, North Carolina

Weather in August

August weather in Wilmington shows a slight decline from the July heat. However, it records the heaviest rainfall of 5.59" (142mm) making the city exceptionally humid. Despite this, many enjoy beach-going as sea temperatures make a comfortable dip. Indoor activities also gain popularity to escape the occasional heavy downpours. Visitors often find delight in exploring the traditional Southern cuisine at local indoor restaurants and food festivals.

Temperature

Upon the onset of August, Wilmington witnesses an average high-temperature of a still hot 86.7°F (30.4°C), showing a close resemblance to the prior month. In Wilmington, an average nighttime temperature of 74.7°F (23.7°C) is expected during August.

Heat index

During August, the heat index is computed to be a fiery hot 100.4°F (38°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce 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 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

August is the month with the most rainfall. Rain falls for 22.3 days and accumulates 5.59" (142mm) of precipitation.

Snowfall

April through December are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 82.8°F (28.2°C).
Note: Ideal surface water temperatures for any water activity fall between 77°F (25°C) and 84.2°F (29°C), offering maximum enjoyment for lengthened periods.

Daylight

In Wilmington, the average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:23 am and sunset at 8:12 pm. On the last day of August, in Wilmington, North Carolina, sunrise is at 6:45 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine is 10.6h.

UV index

The months with the highest UV index in Wilmington, North Carolina, are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 7 in August translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
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Frequently asked questions

How hot is it in Wilmington in August?

In August, the average high-temperature and low-temperature are 86.7°F (30.4°C) and 74.7°F (23.7°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 100.4°F (38°C).

What is the most humid month in Wilmington?

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

What is the average humidity in August in Wilmington?

In August, the average relative humidity in Wilmington, North Carolina, is 77%.

What is the wettest month in Wilmington?

August is the month with the most rainfall. Rain falls for 22.3 days and accumulates 5.59" (142mm) of precipitation.

How many days does it rain in August in Wilmington?

In Wilmington, North Carolina, in August, during 22.3 rainfall days, 5.59" (142mm) of precipitation is typically accumulated.

When it does not snow in Wilmington?

In Wilmington, snow does not fall in April through December.

What month is the ocean warmest in Wilmington?

August is the month with the warmest seawater, with an average ocean temperature of 82.8°F (28.2°C).

What is the ocean temperature in August in Wilmington?

In Wilmington, in August, the average water temperature is 82.8°F (28.2°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

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

In August, the average day length in Wilmington, North Carolina, is 13h and 23min.

What time are sunrise and sunset in August in Wilmington?

On the first day of August, sunrise is at 6:23 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:38 pm EDT.

How many hours of sunshine does Wilmington have in August?

The average sunshine duration in August in Wilmington, North Carolina, is 10.6h.

What is the month with the highest UV index in Wilmington?

The months with the highest UV index in Wilmington are June through August, with an average maximum UV index of 7.

How high is the UV index in August in Wilmington?

In August, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high hazard to health from 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
Wilmington, NC

Average temperature in August - Wilmington, NC
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in August: 74.7°F

The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

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Average pressure in August
Wilmington, NC

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

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

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Average wind speed in August
Wilmington, NC

Average wind speed in August - Wilmington, NC
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in August
Wilmington, NC

Average humidity in August - Wilmington, 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 and March (73%).

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Average rainfall in August
Wilmington, NC

Average rainfall in August - Wilmington, NC
  • Average rainfall in August: 5.59"

The wettest month (with the highest rainfall) is August (5.59").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in August
Wilmington, NC

Average rainfall days in August - Wilmington, NC
  • Average rainfall days in August: 22.3 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in August
Wilmington, NC

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

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Wilmington, NC

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

The month with the highest number of snowfall days is January (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 sea temperature in August
Wilmington, NC

Average sea temperature in August - Wilmington, NC
  • Average sea temperature in August: 82.8°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

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

Average daylight in August / Average sunshine in August - Wilmington, NC
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 10h and 4min

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

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Average sunshine days in August
Wilmington, NC

Average sunshine days in August - Wilmington, NC
  • Average sunshine days in August: 6.3 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is August (6.3 days).

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Average UV index in August
Wilmington, NC

Average UV index in August - Wilmington, NC
  • Average UV index in August: 7

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

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Average cloud cover in August
Wilmington, NC

Average cloud cover in August - Wilmington, NC
  • Average cloud cover in August: 29

The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).

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Average visibility in August
Wilmington, NC

Average visibility in August - Wilmington, 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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Wilmington, North Carolina, USA

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