The highest day temperature in September 2026 was 96°F. The lowest night temperature was 82°F. The average values for day and night temperatures during September were 90.4°F и 85.9°F respectivly.

The average sea surface temperature in September 2026 for Miami Beach was 89.8°F. The maximum and minimum values were 84.4°F and 91.8°F respectively.

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation total in September for Miami Beach is 4.8 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 9.5 mph. It makes September the most windless month of the year for Miami Beach.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Miami Beach in September is 6.7 hours.