September weather forecast
Sunny Isles Beach, FL

The stunning skyscrapers of the cityscape along the Sunny Isles Beach, Florida, with a scenic reflection in the ocean water
The stunning skyscrapers of the cityscape along the Sunny Isles Beach, Florida, with a scenic reflection in the ocean water

Weather in September

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

Temperature

In Sunny Isles Beach, the average high-temperature in September is practically the same as in August - a still hot 87.8°F (31°C). The average low-temperature, in September, is 75.2°F (24°C).

Rainfall

In Sunny Isles Beach, during September, the rain falls for 17 days and regularly aggregates up to 7.52" (191mm) of precipitation. In Sunny Isles Beach, during the entire year, the rain falls for 135 days and collects up to 55.98" (1422mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Sunny Isles Beach is 84.2°F (29°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In September, the average length of the day in Sunny Isles Beach is 12.3h.

Sunshine

In Sunny Isles Beach, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 10. A UV Index value of 8 to 10 symbolizes a very high health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 10 in September interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

How much does it rain in Sunny Isles Beach in September?

In Sunny Isles Beach, in September, during 17 rainfall days, 7.52" (191mm) of precipitation is typically accumulated.

What is the ocean temperature in September in Sunny Isles Beach?

In Sunny Isles Beach, in September, the average water temperature is 84.2°F (29°C). 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.

How many hours of daylight does Sunny Isles Beach have in September?

The average length of the day in September in Sunny Isles Beach, Florida, is 12.3h.

How long on average sun shines in September in Sunny Isles Beach?

In September, the average sunshine in Sunny Isles Beach, Florida, is 9h.

What is the UV index intensity in September in Sunny Isles Beach?

In September, the average daily maximum UV index in Sunny Isles Beach, Florida, is 10. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Sunny Isles Beach, FL

Average temperature in September - Sunny Isles Beach, FL
  • Average high temperature in September: 88°F

The warmest months (with the highest average high temperature) are July and August (90°F).
Months with the lowest average high temperature are January and February (75°F).

  • Average low temperature in September: 75°F

The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (59°F).

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Average rainfall in September
Sunny Isles Beach, FL

Average rainfall in September - Sunny Isles Beach, FL
  • Average rainfall in September: 7.5"

The wettest month (with the highest rainfall) is June (8.5").
The driest month (with the least rainfall) is December (2.1").

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Average rainfall days in September
Sunny Isles Beach, FL

Average rainfall days in September - Sunny Isles Beach, FL
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is April (6 days).

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Average sea temperature in September
Sunny Isles Beach, FL

Average sea temperature in September - Sunny Isles Beach, FL
  • Average sea temperature in September: 84°F

The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest months (with the lowest average sea temperature) are January, February and March (75°F).

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Average daylight in September /
Average sunshine in September
Sunny Isles Beach, FL

Average daylight in September / Average sunshine in September - Sunny Isles Beach, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in September: 9h

Months with the most sunshine are April, May and July (Average sunshine: 10h).
Months with the least sunshine are January, November and December (Average sunshine: 7).

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Average UV index in September
Sunny Isles Beach, FL

Average UV index in September - Sunny Isles Beach, FL
  • Average UV index in September: 10

Months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).

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