World sea water temperatures

Water temperature in Caspersen Beach (FL) in September

Is it warm enough to swim in Caspersen Beach in September? Average water temperature in Caspersen Beach in September is 85.5°F and therefore suitable for comfortable swimming. The warmest sea in Caspersen Beach in September is 88.3°F, and the coldest is 82.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Caspersen Beach

Changes water temperature in Caspersen Beach in September 2025, 2024

To get an accurate forecast for the water temperature in Caspersen Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Caspersen Beach, 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 186.7°F86.2°F84.7°F88°F
September 286.9°F86.7°F83.8°F87.8°F
September 386.5°F86.2°F84°F87.6°F
September 486.4°F86.4°F84°F87.4°F
September 5 86.2°F84.2°F87.3°F
September 6 86°F84.2°F88.3°F
September 7 87.1°F83.8°F87.8°F
September 8 86.5°F84.2°F88°F
September 9 87.1°F84.2°F87.8°F
September 10 87.3°F84.4°F87.3°F
September 11 86.9°F84.2°F87.3°F
September 12 86.9°F84.2°F87.4°F
September 13 88°F84°F88°F
September 14 87.4°F83.8°F87.4°F
September 15 88°F83.7°F88°F
Day 2025 2024 Min Max
September 16 87.6°F83.5°F87.6°F
September 17 88°F83.3°F88°F
September 18 88°F83.3°F88°F
September 19 87.3°F83.3°F87.6°F
September 20 87.4°F83.3°F87.4°F
September 21 87.1°F83.1°F87.6°F
September 22 86.9°F83.1°F86.9°F
September 23 86.9°F82.9°F86.9°F
September 24 86.5°F82.8°F86.5°F
September 25 86.4°F82.2°F86.7°F
September 26 86°F82.2°F86.7°F
September 27 85.3°F82.6°F87.6°F
September 28 84.9°F82.6°F87.1°F
September 29 85.5°F82.8°F86.9°F
September 30 86.2°F82.9°F86.7°F
Caspersen Beach water temp chart in September

Average water temperature in Caspersen Beach in September over a decade

20152016201720182019
85.6°F85.3°F85.1°F85.8°F84.9°F
20202021202220232024
85.5°F85.6°F86.5°F85.8°F86.7°F

Caspersen Beach sea state in September

Chart comparing the height of waves in Caspersen Beach 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 Caspersen Beach in September

Caspersen Beach 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
Laurel85.5°F82.2°F88.3°F
Englewood85.5°F82.2°F88.3°F
Blind Pass Beach85.5°F82.2°F88.3°F
Casey Key85.5°F81.9°F88.3°F
Don Pedro Island85.5°F82.2°F88.7°F
Stump Pass Beach85.5°F82.2°F88.7°F
North Port85.3°F81.7°F88°F
Siesta Key85.5°F81.9°F88.3°F
Gulf Gate Estates85.5°F81.9°F88.3°F
Osprey85.5°F81.9°F88.3°F

Caspersen Beach photo gallery

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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 Caspersen Beach 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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