The highest day temperature in September 2023 was 86°F. The lowest night temperature was 74°F. The average values for day and night temperatures during September were 80.4°F и 78.0°F respectivly.

The average sea surface temperature in September 2023 for Siesta was 82.3°F. The maximum and minimum values were 80.8°F and 83.8°F respectively.

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

Precipitation total in September for Siesta is 0.8 in. It makes september the most rainy month of the year.

The average wind speed in September is 9.5 mph. It makes September one of the most windless months of the year for Siesta.

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 Siesta in September is 9.3 hours.