August weather forecast
Simpsonville, SC

August in Simpsonville, South Carolina continues the summer season, with temperatures marginally cooler than in July. This month is a subtle reminder of the impending autumn, yet the summer heat lingers on, providing residents with enough opportunities to relish the sun. With declining daylight hours, the sights of the crisp sunset can be enjoyed every evening. The scenery of Simpsonville becomes even more breath-taking as the heat starts to subside slowly. People eagerly anticipate the autumnal weather while enjoying the final summer month.

Temperature

Simpsonville's average high-temperature in August is a still hot 88.3°F (31.3°C), marking an insignificant difference from the 90.5°F (32.5°C) of July. During the month of August, an average low-temperature of 67.8°F (19.9°C) is recorded in Simpsonville.

Heat index

August's mean heat index is evaluated at a very hot 102.2°F (39°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In August, the average relative humidity is 71%.

Rainfall

In Simpsonville, in August, during 17.9 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Simpsonville, during the entire year, the rain falls for 163.9 days and collects up to 35.51" (902mm) of precipitation.

Snowfall

April through October are months without snowfall in Simpsonville.

Daylight

In Simpsonville, South Carolina, the average length of the day in August is 13h and 25min.
On the first day of August, sunrise is at 6:39 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:56 pm EDT.

Sunshine

In Simpsonville, the average sunshine in August is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Fend off overexposure. Sun protection is vital. 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.