World sea water temperatures

Water temperature in Saint Martin (MS) in September

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Is it warm enough to swim in Saint Martin in September? Average water temperature in Saint Martin in September is 83.1°F and therefore suitable for comfortable swimming. The warmest sea in Saint Martin in September is 87.6°F, and the coldest is 77.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Saint Martin

Changes water temperature in Saint Martin in September 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 184.9°F84.6°F81.7°F87.1°F
September 284°F84.7°F81.1°F86.9°F
September 384.2°F85.1°F81°F86.9°F
September 484.4°F84.9°F81°F86.7°F
September 584.4°F84.6°F81.7°F86.5°F
September 685.5°F84.6°F80.2°F86.2°F
September 785.1°F84.2°F80.1°F86.5°F
September 882.2°F83.7°F79.5°F86.4°F
September 982.2°F83.1°F79.7°F86.5°F
September 1082.4°F82.4°F79.7°F87.3°F
September 1182.8°F81.7°F79.5°F87.3°F
September 1282.8°F80.8°F79.9°F86.7°F
September 1384°F80.1°F79.3°F86.4°F
September 1484.2°F80.2°F78.6°F86.5°F
September 1584.2°F81.3°F79.2°F86.2°F
Day 2025 2024 Min Max
September 1684°F81.5°F79.9°F86.2°F
September 1784°F82.2°F80.4°F87.3°F
September 1883.8°F83.1°F80.4°F87.6°F
September 1983.8°F83.5°F80.4°F87.3°F
September 2083.8°F84.2°F80.4°F87.3°F
September 2184°F84.2°F80.1°F87.6°F
September 2285.1°F84.6°F79.5°F87.3°F
September 2384.9°F84.7°F79.3°F86.7°F
September 2484.7°F86.4°F77.9°F86.4°F
September 2584.9°F85.1°F77.5°F85.8°F
September 26 83.8°F77.9°F85.5°F
September 27 82°F77.5°F84.9°F
September 28 80.2°F77.7°F85.1°F
September 29 80.2°F77.9°F84.4°F
September 30 80.1°F77.9°F84.2°F
Saint Martin water temp chart in September

Average water temperature in Saint Martin in September over a decade

20152016201720182019
82.2°F84.7°F81.9°F85.1°F85.1°F
20202021202220232024
83.1°F81.7°F83.5°F84.2°F83.1°F

Saint Martin sea state in September

Chart comparing the height of waves in Saint Martin 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.

Waves height in Saint Martin in September

Saint Martin water temperature during other months:

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

Where is the warm sea water in September?

Want to know where the water temperature in September is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Ocean Springs83.1°F77.2°F87.8°F
Gulfport83.1°F76.1°F87.8°F
Waveland82.9°F76.6°F88.2°F
Chandeleur Islands83.8°F78.3°F87.6°F
Fairhope82.9°F76.6°F87.8°F
Fort Morgan83.7°F77.5°F87.6°F
Point Clear83.3°F76.5°F88.2°F
Shell Beach83.1°F76.8°F88.2°F
New Orleans83.5°F77.2°F88.2°F
Gulf Shores83.8°F78.4°F88°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Saint Martin 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.

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