Water temperature in Mar-a-Lago (FL) in September

Is it warm enough to swim in Mar-a-Lago in September? Average water temperature in Mar-a-Lago in September is 85.1°F and therefore suitable for comfortable swimming. The warmest sea in Mar-a-Lago in September is 87.4°F, and the coldest is 82.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Mar-a-Lago

Changes water temperature in Mar-a-Lago in September 2025, 2024

To get an accurate forecast for the water temperature in Mar-a-Lago for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Mar-a-Lago, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

Average water temperature in Mar-a-Lago in September over a decade

Chart comparing the height of waves in Mar-a-Lago in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

You can also view information about water temperature for other months by clicking on the month button below

Places with the warmest average sea water temperature in Florida in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

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Our report for Mar-a-Lago is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.