July weather forecast
Saint Simons Island, GA

July carries the tropical conditions of June further, maintaining high humidity and rainfall levels. With the change from June to July, daylight decreases slightly though sea temperatures continue to rise. The high temperature, along with persistent rains, keeps the cloud coverage relatively stable and visibility remains clear across the Island. July is exceptional on Saint Simons Island due to its maximum average temperature and sea temperature of 88.7 degrees F and 82.3 degrees F respectively. However, the month offers a vibrant summer experience, comprising beach activities by day and numerous social events by evening.

Temperature

July is the month when Saint Simons Island sees the highest average temperatures, with a high of 88.7°F (31.5°C) and a low of 77°F (25°C).

Heat index

For July, the heat index is calculated to be a blisteringly hot 105.8°F (41°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. 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. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In Saint Simons Island, in July, it is raining for 21.6 days, with typically 2.87" (73mm) of accumulated precipitation. In Saint Simons Island, during the entire year, the rain falls for 163.3 days and collects up to 20.43" (519mm) of precipitation.

Snowfall

January, March through November are months without snowfall in Saint Simons Island.

Ocean temperature

In July, the average ocean temperature is 82.2°F (27.9°C).
Note: Between the temperatures of 77°F (25°C) and 84.2°F (29°C), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

In Saint Simons Island, the average length of the day in July is 13h and 56min.
On the first day of July in Saint Simons Island, Georgia, sunrise is at 6:25 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 8:21 pm EDT.

Sunshine

With an average of 11h of sunshine, July has the most sunshine of the year in Saint Simons Island.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in July, converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Attention! UV strength is notably upped by the reflection of sand and water.