September weather forecast
Frontenac, FL

The first month of the autumn, September, is still a tropical month in Frontenac, Florida, with an average temperature ranging between max 86.4°F (30.2°C) and min 76.6°F (24.8°C).

Temperature

September's commencement is accompanied by an average high-temperature of a still hot 86.4°F (30.2°C), diverging marginally from August's 88.7°F (31.5°C). In September, Frontenac reports a consistent average low-temperature of 76.6°F (24.8°C) during the nights.

Heat index

The heat index in September is calculated to be a very hot 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In September, the average relative humidity in Frontenac is 78%.

Rainfall

In September, in Frontenac, the rain falls for 23.8 days. Throughout September, 5.2" (132mm) of precipitation is accumulated. In Frontenac, Florida, during the entire year, the rain falls for 202 days and collects up to 40.2" (1021mm) of precipitation.

Daylight

In Frontenac, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:09 pm EDT.

Sunshine

In September, the average sunshine in Frontenac is 8.9h.

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 threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.