September weather forecast
Charleston Park, FL

The first month of the autumn, September, is still a tropical month in Charleston Park, Florida, with an average temperature ranging between min 74.3°F (23.5°C) and max 88.3°F (31.3°C).

Temperature

September's arrival brings an average high-temperature of a still tropical 88.3°F (31.3°C), demonstrating subtle variation from the preceding month. Charleston Park records an average nighttime low-temperature of 74.3°F (23.5°C) throughout September.

Heat index

Throughout September, the heat index is calculated to be an extremely hot 107.6°F (42°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 80%, September is the most humid month.

Rainfall

In Charleston Park, Florida, in September, it is raining for 19.7 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 161.1 rainfall days, and 17.6" (447mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Charleston Park is 12h and 18min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:45 pm. On the last day of September, in Charleston Park, Florida, sunrise is at 7:18 am and sunset at 7:13 pm EDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Charleston Park. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in September translates into these instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.