August weather forecast
Martinsville, VA

Martinsville in August projects a break from July’s peak, with temperatures dropping slightly to an average high of 86.7°F (30.4°C). While maintaining the captivating essence of summer, a bit of rainfall balances the heat. August days are pervaded by warmth even as a hint of autumn lurks around the corner. As the month progresses, the nights get progressively cooler. September looms ahead with indications of milder climates and the cheerful advent of Fall.

Temperature

As August takes hold in Martinsville, the average high-temperature is a still hot 86.7°F (30.4°C), nearly mirroring that of the previous month. Martinsville records a consistent low-temperature average of 64.2°F (17.9°C) during August, indicating a significant difference from the daytime heat.

Heat index

August's heat index is estimated at a very hot 98.6°F (37°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in August in Martinsville is 72%.

Rainfall

In Martinsville, during August, the rain falls for 13.7 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Martinsville, Virginia, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.

Snowfall

In Martinsville, snow does not fall in April, June through October.

Daylight

The average length of the day in August is 13h and 31min.
On the first day of August in Martinsville, sunrise is at 6:26 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:48 pm EDT.

Sunshine

The average sunshine in August in Martinsville, Virginia, is 10.5h.

UV index

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.