September weather forecast
Sisco, FL

The first month of the autumn, September, is also a hot month in Sisco, Florida, with an average temperature fluctuating between 73.4°F (23°C) and 88.7°F (31.5°C).

Temperature

The beginning of September records an average high-temperature of a still hot 88.7°F (31.5°C), marking a negligible difference from August's 92.3°F (33.5°C). During September, the average low-temperature is recorded at a warm 73.4°F (23°C).

Heat index

For most parts of September, the heat index is estimated at an extremely hot 105.8°F (41°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index data is primarily for areas with shade and subjected to light 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 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

July through September, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Sisco, in September, it is raining for 15.7 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, in Sisco, Florida, there are 151.1 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Sisco, Florida, is 12h and 20min.
On the first day of September in Sisco, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:12 pm EDT.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.