September weather forecast
Fish Creek, FL

The first month of the autumn, September, is still a tropical month in Fish Creek, Florida, with an average temperature ranging between max 87.4°F (30.8°C) and min 71.8°F (22.1°C).

Temperature

The introduction of September sees an average high-temperature of a still tropical 87.4°F (30.8°C), hardly deviating from August. Nighttime temperature in Fish Creek experiences an average drop to a pleasant 71.8°F (22.1°C) in September.

Heat index

In September, the average heat index is estimated at a torrid 102.2°F (39°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. 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. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The months with the highest humidity in Fish Creek, Florida, are August, September and December, with an average relative humidity of 77%.

Rainfall

In Fish Creek, Florida, in September, it is raining for 18.3 days, with typically 3.27" (83mm) of accumulated precipitation. In Fish Creek, during the entire year, the rain falls for 168.6 days and collects up to 32.95" (837mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 7:11 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:20 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September in Fish Creek is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.