September weather forecastGulf Stream, FL

Weather in September

September, the first month of the autumn in Gulf Stream, is also a moderately hot month, with an average temperature ranging between min 80.1°F (26.7°C) and max 85.1°F (29.5°C).

Temperature

September notes an average high-temperature of a warm 85.1°F (29.5°C), subtly differing from August's 86.9°F (30.5°C). In Gulf Stream, a slight decrease from the daytime peak is noted during the month of September, with an average low-temperature of 80.1°F (26.7°C).

Heat index

September's average heat index is estimated at a torrid 95°F (35°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The months with the highest humidity are June, September and December, with an average relative humidity of 75%.

Rainfall

In Gulf Stream, in September, it is raining for 26.5 days, with typically 6.93" (176mm) of accumulated precipitation. Throughout the year, there are 229 rainfall days, and 46.46" (1180mm) of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.