September weather forecast
Yellow Bluff, FL

The first month of the autumn, September, is still a tropical month in Yellow Bluff, Florida, with an average temperature ranging between min 73.4°F (23°C) and max 88.7°F (31.5°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 88.7°F (31.5°C), from a not significantly different 91.8°F (33.2°C). September sees the temperature falling to a mean low of 73.4°F (23°C).

Heat index

Throughout September, the heat index is calculated to be an extremely hot 107.6°F (42°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 78%.

Rainfall

In Yellow Bluff, in September, it is raining for 17.2 days, with typically 2.01" (51mm) of accumulated precipitation. In Yellow Bluff, during the entire year, the rain falls for 159.8 days and collects up to 21.93" (557mm) of precipitation.

Daylight

In September, the average length of the day in Yellow Bluff, Florida, is 12h and 20min.
On the first day of September in Yellow Bluff, Florida, 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 7:13 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September in Yellow Bluff, Florida, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.