August weather forecast
Tybee Island, GA

August sees the continuation of summer at its peak in Tybee Island. It generally presents the same conditions as July, with high temperature, robust sunshine, and a high quantity of rainfall. August stands out with the highest rainfall of the year at 6.02in, attributing to the most significant number of rainfall days. Moving towards September, a lessening of both heat and daylight hours can be expected. However, snowfall remains practically non-existent.

Temperature

The onset of August brings an average high-temperature of a still tropical 87.1°F (30.6°C), nearly matching the July temperature. During the nights of August, Tybee Island maintains an almost steady temperature with an average low of 78.4°F (25.8°C).

Heat index

August's mean heat index is calculated to be a sweltering 102.2°F (39°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in August is 77%.

Rainfall

August is the month with the most rainfall. Rain falls for 22.5 days and accumulates 6.02" (153mm) of precipitation.

Snowfall

In Tybee Island, snow does not fall in March through December.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 83.5°F (28.6°C).
Note: Water surface temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

The average length of the day in August is 13h and 17min.
On the first day of the month, sunrise is at 6:39 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:58 am and sunset at 7:48 pm EDT.

Sunshine

In Tybee Island, the average sunshine in August is 10.8h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Stay cautious! Sand and water reflections increase UV radiation potency.