September weather forecast
Union Park, FL

The first month of the autumn, September, is still a tropical month in Union Park, Florida, with an average temperature ranging between min 74.5°F (23.6°C) and max 88.5°F (31.4°C).

Temperature

September's advent presents an average high-temperature of a still hot 88.5°F (31.4°C), indicating a slight variation from the conditions of the previous month. The average temperature in Union Park drops to a moderately hot 74.5°F (23.6°C) during the night in the month of September.

Heat index

The heat index in September is evaluated at an extremely hot 105.8°F (41°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

August and September, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Union Park, during September, the rain falls for 21.4 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, there are 187.6 rainfall days, and 33.86" (860mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Union Park is 12h and 19min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Union Park. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.