August weather forecast
Columbia, TN

August maintains the summer's peak, with average high temperatures still reaching up to 86.5°F (30.3°C) in Columbia, Tennessee. Since the weather hardly changes from July, tourists often find themselves taking part in various water activities. Fewer daylight hours and only slightly lower temperatures signal the upcoming shift towards autumn. Outdoor activities continue to thrive in the dramatic Tennessee summer. A noticable decline in temperature begins during the month end, signaling the approaching autumn.

Temperature

The weather during August records an average high-temperature of a still hot 86.5°F (30.3°C), closely mirroring the preceding month. In August, Columbia records an average nighttime temperature of 67.3°F (19.6°C).

Heat index

August's mean heat index is evaluated at a sweltering 98.6°F (37°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. 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. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Columbia, during August, the rain falls for 17.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Columbia, during the entire year, the rain falls for 172.4 days and collects up to 38.43" (976mm) of precipitation.

Snowfall

In Columbia, snow does not fall in May through October.

Daylight

The average length of the day in August in Columbia is 13h and 28min.
On the first day of August in Columbia, sunrise is at 5:56 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:16 pm CDT.

Sunshine

In August, the average sunshine in Columbia is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Columbia. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.