World sea water temperatures

Water temperature in Cortez (FL) in September

Is it warm enough to swim in Cortez in September? Average water temperature in Cortez in September is 85.3°F and therefore suitable for comfortable swimming. The warmest sea in Cortez in September is 88.3°F, and the coldest is 80.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Cortez

Changes water temperature in Cortez in September 2025, 2024

To get an accurate forecast for the water temperature in Cortez for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Cortez, 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 186.4°F87.1°F84.4°F87.8°F
September 286°F86.7°F83.7°F87.8°F
September 386°F86.5°F83.7°F87.6°F
September 485.6°F86.2°F83.8°F87.4°F
September 585.3°F86°F84°F87.3°F
September 685.8°F86.5°F83.8°F88.3°F
September 786.2°F86.9°F83.7°F87.8°F
September 886°F87.3°F84°F87.8°F
September 985.8°F87.1°F84°F87.4°F
September 1085.1°F86.9°F84°F87.1°F
September 1184.7°F86.9°F83.8°F86.9°F
September 1284.7°F86.9°F83.8°F86.9°F
September 1384.2°F87.4°F83.7°F87.4°F
September 1483.5°F87.1°F83.5°F87.1°F
September 1583.7°F87.4°F83.5°F87.4°F
Day 2025 2024 Min Max
September 1683.5°F87.6°F83.3°F87.6°F
September 1783.5°F87.3°F83.3°F87.6°F
September 1882.9°F87.6°F82.9°F87.6°F
September 1982.9°F87.6°F82.9°F87.6°F
September 2083.3°F87.4°F83.1°F87.4°F
September 2183.1°F87.1°F82.9°F87.3°F
September 2283.3°F86.7°F82.6°F86.7°F
September 2383.1°F86°F82.8°F86.4°F
September 2484°F86°F82.4°F86.5°F
September 2584.7°F86°F82.4°F86.7°F
September 26 85.6°F82°F86.2°F
September 27 84.9°F82.2°F87.3°F
September 28 84°F82.4°F86.7°F
September 29 85.3°F82.4°F86.4°F
September 30 86°F80.2°F86.4°F
Cortez water temp chart in September

Average water temperature in Cortez in September over a decade

20152016201720182019
85.5°F85.1°F85.1°F85.8°F84.7°F
20202021202220232024
85.1°F85.1°F85.8°F85.5°F86.5°F

Cortez sea state in September

Chart comparing the height of waves in Cortez 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 Cortez in September

Cortez 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
West Bradenton85.3°F80.6°F88.2°F
Manatee Beach85.3°F80.6°F88.2°F
Passage Key85.1°F80.4°F88.3°F
Longboat Key85.3°F80.4°F88.2°F
Coquina Beach85.3°F80.4°F88.2°F
Whitney Beach85.3°F80.4°F88.2°F
Egmont Key85.1°F80.6°F88.2°F
Ellenton85.3°F80.8°F88°F
Palmetto85.3°F80.8°F88°F
Whitfield85.3°F80.8°F88.2°F

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  • Masses of Man O’Wars visit Panama City  Beach, Florida•3/11/2023•by Abby Simpson

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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 Cortez 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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