August weather forecast
Topsail Beach, NC

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 average high-temperature in Topsail Beach during August is a moderately hot 85.8°F (29.9°C), almost matching the conditions of the preceding month. Throughout the nights in August, an average low-temperature of 76.3°F (24.6°C) is noted in Topsail Beach.

Heat index

For most parts of August, the heat index is evaluated at a sweltering 98.6°F (37°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 are extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

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

Rainfall

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

Snowfall

March through November 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: Surface water temperatures falling between 77°F (25°C) and 84.2°F (29°C) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Topsail Beach, the average length of the day in August 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

The average sunshine in August in Topsail Beach 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 value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Warning! The reflection of sand and water increases the UV dose.