September weather forecast
Osprey, FL

September, the first month of the autumn in Osprey, is also a hot month, with an average temperature ranging between max 86.7°F (30.4°C) and min 77.5°F (25.3°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 86.7°F (30.4°C), from a not significantly different 88.3°F (31.3°C). An average nighttime temperature of 77.5°F (25.3°C) is witnessed in Osprey, Florida throughout September.

Heat index

The heat index value during September is appraised at a torrid 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity in Osprey is 75%.

Rainfall

In Osprey, in September, during 21.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Osprey, during the entire year, the rain falls for 156.3 days and collects up to 18.82" (478mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Osprey is 84.7°F (29.3°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September in Osprey, Florida, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

The months with the highest UV index in Osprey are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be wary! Reflections from sand and water make UV radiation more intense.