September weather forecast
Rattlesnake, FL

September, the first month of the autumn in Rattlesnake, is also a hot month, with an average temperature varying between 88.7°F (31.5°C) and 76.1°F (24.5°C).

Temperature

With the start of September, Rattlesnake measures an average high-temperature of a still tropical 88.7°F (31.5°C), not significantly differing from August's 90.1°F (32.3°C). Throughout September, an average low-temperature of 76.1°F (24.5°C) is expected.

Heat index

The heat index value during September is estimated at a blisteringly hot 104°F (40°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Rattlesnake, the average relative humidity in September is 74%.

Rainfall

In Rattlesnake, during September, the rain falls for 19.9 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, in Rattlesnake, Florida, there are 165.7 rainfall days, and 27.56" (700mm) of precipitation is accumulated.

Daylight

In Rattlesnake, Florida, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:09 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine in Rattlesnake is 9h.

UV index

The months with the highest UV index in Rattlesnake, Florida, are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.