September weather forecast
Sunny Isles Beach, FL

September, the first month of the autumn in Sunny Isles Beach, is still a tropical month, with an average temperature ranging between min 75.2°F (24°C) and max 87.8°F (31°C).

Temperature

The start of September marks an average high-temperature of a still hot 87.8°F (31°C), hardly distinguishable from the conditions in August. In Sunny Isles Beach, an average temperature of 75.2°F (24°C) is noted during September nights.

Rainfall

In Sunny Isles Beach, during September, the rain falls for 17 days and regularly aggregates up to 7.52" (191mm) of precipitation. Throughout the year, there are 135 rainfall days, and 55.98" (1422mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature is 84.2°F (29°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Sunny Isles Beach, 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, in Sunny Isles Beach, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

The average sunshine in September in Sunny Isles Beach is 9h.

UV index

The average daily maximum UV index in September in Sunny Isles Beach is 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 10 in September converts into the following recommendations:
Be constantly cautious; skin and eyes can be quickly affected if left unprotected. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Use liberally and reapply a broad-spectrum sunscreen with at least SPF 30 every two hours and right after outdoor activities or a swim. Stay cautious! Sand and water reflections increase UV radiation potency.