September weather forecast
Nokomis Beach, FL

The first month of the autumn, September, is also a hot month in Nokomis Beach, Florida, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 77.9°F (25.5°C).

Temperature

As Nokomis Beach transitions from August to September, the average high-temperatures adjust to a still hot 86.7°F (30.4°C), nearly the same as the previous 87.8°F (31°C). Night temperatures in September exhibit a subtle decrease, settling at an average of 77.9°F (25.5°C).

Heat index

September's heat index is computed to be a torrid 100.4°F (38°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. 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 primarily vital 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.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in September in Nokomis Beach is 76%.

Rainfall

In Nokomis Beach, in September, it is raining for 19.2 days, with typically 1.85" (47mm) of accumulated precipitation. In Nokomis Beach, during the entire year, the rain falls for 150.8 days and collects up to 17.13" (435mm) of precipitation.

Daylight

In September, the average length of the day in Nokomis Beach is 12h and 19min.
On the first day of September, 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 in Nokomis Beach is 9.1h.

UV index

The months with the highest UV index in Nokomis Beach are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Ward off overexposure. Defence against solar harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.