September weather forecast
Old Duette, FL

September, the first month of the autumn in Old Duette, is also a hot month, with an average temperature varying between 73.8°F (23.2°C) and 88°F (31.1°C).

Temperature

In September, Old Duette experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 88°F (31.1°C), closely mirroring the climate in August. In September, Old Duette records an average nighttime temperature of 73.8°F (23.2°C).

Heat index

The heat index value during September is estimated at a blisteringly hot 107.6°F (42°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

September is the most humid month, with an average relative humidity of 81%.

Rainfall

In September, the rain falls for 21 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 175.4 rainfall days, and 22.8" (579mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during September leads to these advisories:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.