August weather forecast
Richmond, VA

August brings a slight dip in temperature with the mercury falling to a range between 68.5°F (20.3°C) and 88.3°F (31.3°C). This drop does little to offset the heat as the summer temperatures persist. Sunshine continues to bless the city with long, bright days complemented by cooler nights. This month has the highest recorded rainfall, bringing sporadic respite from the otherwise scalding weather. August does bring a slight uptick in wind speed, occasionally wafting a much-needed, cool breeze.

Temperature

In August, Richmond notes an average high-temperature of a still hot 88.3°F (31.3°C), hardly different from the preceding month. During the month of August, the temperature in Richmond generally drops to a low average of 68.5°F (20.3°C).

Heat index

The heat index value for August is estimated at a torrid 102.2°F (39°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in August in Richmond, Virginia, is 71%.

Rainfall

The month with the most rainfall is August, when the rain falls for 15.6 days and typically aggregates up to 2.87" (73mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Richmond, the average length of the day in August is 13h and 34min.
On the first day of August in Richmond, sunrise is at 6:14 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:39 pm EDT.

Sunshine

In Richmond, the average sunshine in August is 10h.

UV index

In Richmond, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.