September weather forecast
Seminole, FL

September, the first month of the autumn in Seminole, is still a hot month, with temperature in the range of an average high of 86.2°F (30.1°C) and an average low of 77.9°F (25.5°C).

Temperature

September's onset sees an average high-temperature of a still tropical 86.2°F (30.1°C), exhibiting a slight fluctuation from the previous month. Throughout the nights in September, Seminole notes an average low of 77.9°F (25.5°C), a small dip from the daytime peak.

Heat index

The average heat index in September is estimated at a sweltering 96.8°F (36°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In September, in Seminole, Florida, the rain falls for 21.2 days. Throughout September, 3.5" (89mm) of precipitation is accumulated. Throughout the year, in Seminole, there are 165.3 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Ocean temperature

In Seminole, the average seawater temperature in September is 84.7°F (29.3°C).
Note: In water temperatures ranging between 77°F (25°C) and 84.2°F (29°C), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In Seminole, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:10 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:18 pm EDT.

Sunshine

In Seminole, the average sunshine in September is 9.2h.

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 threat to health from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be on guard! The reflective nature of sand and water boosts UV exposure.