The highest day temperature in September 2024 was 93°F. The lowest night temperature was 83°F. The average values for day and night temperatures during September were 90.7°F и 86.3°F respectivly.

The average sea surface temperature in September 2024 for Marco Island was 91.3°F. The maximum and minimum values were 89.4°F and 93.2°F respectively.

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

Precipitation total in September for Marco Island is 2.4 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 7.5 mph. It makes September one of the most windless months of the year for Marco Island.

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 Marco Island in September is 6.2 hours.