September weather forecast
Arcadia, FL

The first month of the autumn, September, is also a hot month in Arcadia, 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 advent denotes a minor fluctuation in the average high-temperature to a still tropical 88.3°F (31.3°C) from August's 90.1°F (32.3°C). In the month of September, Arcadia records a consistent average low-temperature of 74.3°F (23.5°C).

Heat index

The heat index for September is computed to be a blisteringly hot 107.6°F (42°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

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

Rainfall

In Arcadia, during September, the rain falls for 23.5 days and regularly aggregates up to 3.31" (84mm) of precipitation. In Arcadia, during the entire year, the rain falls for 187.3 days and collects up to 28.62" (727mm) of precipitation.

Daylight

In Arcadia, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September in Arcadia 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.