August weather forecast
Huntsville, AL

Even as the summer nears its end, August ensures Huntsville continues to experience warm weather. Daytime temperatures remain high, dissuading citizens from venturing out during peak hours. Nonetheless, the continuity of rain imparts relief from the unrelenting heat. With around 11 hours of daily sunshine, outdoor activities still remain a viable option during early mornings and late evenings. August holds onto summer's tail, making it the last month of sustained heat in Huntsville.

Temperature

Huntsville sees the arrival of August with an average high-temperature of a still hot 86.7°F (30.4°C), indicating a subtle variation from July. In August, Huntsville encounters an average low-temperature of 68°F (20°C) during the night.

Heat index

The heat index value during August is estimated at a very hot 98.6°F (37°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Huntsville, the average relative humidity in August is 75%.

Rainfall

In Huntsville, in August, during 17.6 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. In Huntsville, during the entire year, the rain falls for 171.9 days and collects up to 42.36" (1076mm) of precipitation.

Snowfall

In Huntsville, snow does not fall in April through October.

Daylight

In Huntsville, the average length of the day in August is 13h and 25min.
On the first day of the month, sunrise is at 5:56 am and sunset at 7:48 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:13 pm CDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.