September weather forecast
Hialeah, FL

The first month of the autumn, September, is also a hot month in Hialeah, Florida, with an average temperature fluctuating between 87.1°F (30.6°C) and 79.9°F (26.6°C).

Temperature

The advent of September brings an average high-temperature of a still hot 87.1°F (30.6°C), exhibiting minor difference from the previous month. Hialeah documents a consistent average low-temperature of 79.9°F (26.6°C) at night during September.

Heat index

The heat index value for September is calculated to be a fiery hot 98.6°F (37°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including 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 essentially critical for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 13.2 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 102.1 rainfall days, and 7.01" (178mm) of precipitation is accumulated.

Daylight

In Hialeah, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of September, in Hialeah, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Hialeah. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.