August weather forecast
Saint Simons Island, GA

August prolongs the summer season on Saint Simons Island, with July and August sharing the same intensity of heat. The fluctuation in humidity is quite unmistakable as one transitions from July to August, pairing with a high probability of rainy days. The gust of wind slightly weakens, and a thick layer of cloud cover keeps the sunlight at bay. August marks its zenith with the highest sea temperature reading of 83.4°F (28.6°C), a mild rise of 1.1°F (-17.2°C) from July. Despite some afternoon storms, beach, and water activities remain in full swing during this month.

Temperature

Saint Simons Island's shift into August is marked by a subtle change to a still tropical 88.3°F (31.3°C) from July's 88.7°F (31.5°C) in temperature. Saint Simons Island experiences an average low-temperature of 77.4°F (25.2°C) in the month of August.

Heat index

For most parts of August, the heat index is calculated to be a blisteringly hot 105.8°F (41°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

August and December, with an average relative humidity of 78%, are the most humid months in Saint Simons Island.

Rainfall

The month with the most rainfall is August, when the rain falls for 23.3 days and typically aggregates up to 3.43" (87mm) of precipitation.

Snowfall

January, March through November are months without snowfall.

Ocean temperature

With an average ocean temperature of 83.5°F (28.6°C), August is the month with the warmest seawater.
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In August, the average length of the day is 13h and 15min.
On the first day of August, sunrise is at 6:42 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:49 pm EDT.

Sunshine

In August, the average sunshine is 10.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 7 transforms into these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The UV exposure is heightened with reflections from sand and water.