September weather forecast
Saint Cloud, FL

The first month of the autumn, September, is still a hot month in Saint Cloud, Florida, with an average temperature ranging between max 88°F (31.1°C) and min 74.1°F (23.4°C).

Temperature

The arrival of September marks a slight shift to an average high-temperature of a still hot 88°F (31.1°C) from August's 90.5°F (32.5°C). In the month of September, an average of 74.1°F (23.4°C) marks the low-temperature.

Heat index

In September, the average heat index is calculated to be a blistering 105.8°F (41°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The months with the highest humidity in Saint Cloud are August and September, with an average relative humidity of 79%.

Rainfall

In Saint Cloud, in September, it is raining for 19.6 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, in Saint Cloud, there are 175 rainfall days, and 21.85" (555mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September in Saint Cloud, Florida, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Saint Cloud. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 suggests this advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.