September weather forecast
Whitney, FL

The first month of the autumn, September, is still a hot month in Whitney, Florida, with an average temperature varying between 72.7°F (22.6°C) and 88.2°F (31.2°C).

Temperature

Whitney's weather in September displays an average high-temperature of a still hot 88.2°F (31.2°C), showing minor disparity from August's 90.1°F (32.3°C). During the month of September, the nighttime temperature falls to an average of 72.7°F (22.6°C).

Heat index

September's mean heat index is evaluated at a scorching 105.8°F (41°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

July through September, with an average relative humidity of 79%, are the most humid months.

Rainfall

In September, the rain falls for 13.6 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. In Whitney, during the entire year, the rain falls for 130.4 days and collects up to 11.26" (286mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September in Whitney, Florida, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In Whitney, Florida, the average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Shield from overexposure. Defense against sun-related harm is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.