August weather forecast
Topsail Beach, NC

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Weather in August

In August, Topsail Beach continues to bask in high temperatures, with an average high of 85.8°F (29.9°C). The sultry summer air is complemented by the warm sea, which remains at a peak temperature of 82.8°F (28.2°C). While the daylight hours and UV index begin their descent, the humidity remains prevalent, resulting in heavy afternoon showers, peaking at 2.87" (73mm) of rainfall on average. As the month progresses, subtle hints of the approaching fall become more evident. Despite the receding temperatures, August still ranks as one of the warmest months of the year.

Temperature

The arrival of August brings an average high-temperature of a warm 85.8°F (29.9°C), closely following the temperature pattern of July. Topsail Beach records an average nighttime low-temperature of 76.3°F (24.6°C) throughout August.

Heat index

In August, the average heat index is calculated to be a torrid 98.6°F (37°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

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

Rainfall

In Topsail Beach, in August, it is raining for 19.5 days, with typically 2.87" (73mm) of accumulated precipitation. In Topsail Beach, during the entire year, the rain falls for 150.4 days and collects up to 20.79" (528mm) of precipitation.

Snowfall

In Topsail Beach, snow does not fall in March through November.

Ocean temperature

With an average ocean temperature of 82.8°F (28.2°C), August is the month with the warmest seawater.
Note: In any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In August, the average length of the day is 13h and 24min.
On the first day of the month, sunrise is at 6:21 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:43 am and sunset at 7:37 pm EDT.

Sunshine

In Topsail Beach, the average sunshine in August is 10.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 in August translates into these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The Sun's UV intensity grows with reflections off sand and water.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

During August, Topsail Beach experiences an average high-temperature of 85.8°F (29.9°C) and a low-temperature of 76.3°F (24.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 98.6°F (37°C).

What is the most humid month?

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

What is the average humidity in August?

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

How many days does it rain in August?

In August, the rain falls for 19.5 days. Throughout August, 2.87" (73mm) of precipitation is accumulated.

When it does not snow?

In Topsail Beach, snow does not fall in March through November.

When is the ocean warmest?

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

How warm is the water in August?

In August, the average ocean temperature is 82.8°F (28.2°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Topsail Beach have in August?

In August, the average day length is 13h and 24min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:21 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:37 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.8h.

What is the month with the highest UV index?

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

How high is the UV index in August?

In Topsail Beach, North Carolina, the average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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
Topsail Beach, NC

Average temperature in August - Topsail Beach, NC
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (54.5°F).

  • Average low temperature in August: 76.3°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in August
Topsail Beach, NC

Average pressure in August - Topsail Beach, 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).

Average wind speed in August
Topsail Beach, NC

Average wind speed in August - Topsail Beach, NC
  • Average wind speed in August: 8.2mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).

Average humidity in August
Topsail Beach, NC

Average humidity in August - Topsail Beach, NC
  • Average humidity in August: 77%

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

Average rainfall in August
Topsail Beach, NC

Average rainfall in August - Topsail Beach, NC
  • Average rainfall in August: 2.87"

The wettest month (with the highest rainfall) is September (2.91").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in August
Topsail Beach, NC

Average rainfall days in August - Topsail Beach, NC
  • Average rainfall days in August: 19.5 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in August
Topsail Beach, NC

Average snowfall in August - Topsail Beach, NC
  • Average snowfall in August: 0"

The months with the highest snowfall are January, February and December (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Topsail Beach, NC

Average snowfall days in August - Topsail Beach, NC
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in August
Topsail Beach, NC

Average sea temperature in August - Topsail Beach, 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).

Average daylight in August /
Average sunshine in August
Topsail Beach, NC

Average daylight in August / Average sunshine in August - Topsail Beach, 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 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in August
Topsail Beach, NC

Average sunshine days in August - Topsail Beach, NC
  • Average sunshine days in August: 8.2 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (8.2 days).

Average UV index in August
Topsail Beach, NC

Average UV index in August - Topsail Beach, NC
  • Average UV index in August: 7

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

Average cloud cover in August
Topsail Beach, NC

Average cloud cover in August - Topsail Beach, NC
  • Average cloud cover in August: 27

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in August
Topsail Beach, NC

Average visibility in August - Topsail Beach, 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).

Topsail Beach, North Carolina, USA

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