September weather forecast
Gillette, FL

The first month of the autumn, September, is also a hot month in Gillette, Florida, with an average temperature varying between 87.3°F (30.7°C) and 77.2°F (25.1°C).

Temperature

Gillette, Florida, measures an average high-temperature of a still hot 87.3°F (30.7°C) in September, nearly consistent with the preceding month. Throughout September, an average low-temperature of 77.2°F (25.1°C) is expected in Gillette, Florida.

Heat index

During September, the heat index is estimated at a torrid 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
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. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Gillette, in September, during 21.7 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, in Gillette, there are 172.1 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Gillette is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

Sunshine

In Gillette, the average sunshine in September is 9.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.