September weather forecast
Fakahatchee, FL

The first month of the autumn, September, is still a tropical month in Fakahatchee, Florida, with an average temperature varying between 78.4°F (25.8°C) and 87.1°F (30.6°C).

Temperature

Fakahatchee observes an average high-temperature of a still tropical 87.1°F (30.6°C) in September, barely different from 88.3°F (31.3°C) in August. In Fakahatchee, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at a warm 78.4°F (25.8°C).

Heat index

In September, the average heat index is evaluated at a very hot 100.4°F (38°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Fakahatchee, during September, the rain falls for 21.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.

Daylight

In Fakahatchee, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:13 pm EDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

May through September, 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 ordinary individuals.
Note: The UV index of 7 in September translates into these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.