August weather forecast
Fort Myers, FL

August brings a slight increase in temperature, but the mercury stays below the annual maximum observed in July. Rainfall climbs further, contributing to the general humidity. However, the expansive daylight and numerous sunny hours ensure that the dampness doesn't overshadow the warmth and natural beauty of Fort Myers. The UV index remains high, prompting the need for necessary sun protection measures. Wind speed and pressure stay in their steady mid-year ranges, presenting a tranquil atmosphere.

Temperature

Temperature readings reach their annual highs in August, averaging 89.4°F (31.9°C) and a minimum average of 79°F (26.1°C).

Heat index

August's heat index is calculated to be a scorching 107.6°F (42°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

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

Rainfall

The month with the most rainfall is August, when the rain falls for 22.7 days and typically aggregates up to 4.72" (120mm) of precipitation.

Ocean temperature

With an average ocean temperature of 86°F (30°C), August is the month with the warmest seawater.
Note: For many, when water temperatures rise above 86°F (30°C), the cooling pleasure of swimming diminishes.

Daylight

In August, the average length of the day is 13h and 3min.
On the first day of the month, sunrise is at 6:52 am and sunset at 8:14 pm. On the last day of August, sunrise is at 7:07 am and sunset at 7:48 pm EDT.

Sunshine

In Fort Myers, the average sunshine in August is 9.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Boost your sun resistance with garments that are densely woven yet spacious. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.