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Water temperature in San Luis Pass (TX) in September

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Is it warm enough to swim in San Luis Pass in September? Average water temperature in San Luis Pass in September is 84.4°F and therefore suitable for comfortable swimming. The warmest sea in San Luis Pass in September is 88.3°F, and the coldest is 78.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Luis Pass

Changes water temperature in San Luis Pass in September 2025, 2024

To get an accurate forecast for the water temperature in San Luis Pass for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in San Luis Pass, 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 187.8°F86.2°F83.1°F88°F
September 286.9°F86°F83.3°F87.6°F
September 386.9°F86°F84°F88.2°F
September 487.3°F85.8°F84°F87.8°F
September 587.3°F85.8°F84.2°F87.6°F
September 687.3°F85.6°F83.5°F87.6°F
September 786.7°F85.3°F83.1°F88.2°F
September 886.4°F83.1°F82.6°F88.3°F
September 985.3°F83.1°F81.9°F88.2°F
September 1085.1°F83.3°F81.7°F87.8°F
September 1184.9°F80.8°F80.8°F87.4°F
September 1284.9°F81.3°F81.1°F87.4°F
September 1385.3°F82.6°F80.4°F87.6°F
September 1485.6°F82.9°F81.1°F86.7°F
September 1585.3°F83.5°F81.1°F87.1°F
Day 2025 2024 Min Max
September 1685.3°F82.8°F81.3°F86.5°F
September 1785.5°F84.2°F80.2°F85.8°F
September 1885.1°F84.6°F80.1°F86.2°F
September 1985.3°F84.7°F80.1°F86.7°F
September 2085.5°F85.3°F79.2°F86.7°F
September 2185.6°F85.6°F79.2°F86.5°F
September 2286°F85.3°F79.5°F86.4°F
September 2385.8°F85.5°F79.7°F86.2°F
September 2485.8°F85.5°F79.9°F86°F
September 2585.3°F85.3°F79.5°F86.4°F
September 26 84.9°F79.3°F86.4°F
September 27 83.8°F79.2°F85.5°F
September 28 83.8°F79.2°F86°F
September 29 83.8°F79°F85.5°F
September 30 83.7°F78.8°F85.5°F
San Luis Pass water temp chart in September

Average water temperature in San Luis Pass in September over a decade

20152016201720182019
84°F85.8°F82.6°F84.2°F85.6°F
20202021202220232024
84.4°F84.2°F85.3°F86.7°F84.4°F

San Luis Pass 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
Houston83.7°F76.5°F88.3°F
Trinity Bay83.7°F76.1°F88.5°F
Anahuac83.7°F76.5°F88.3°F
Sea Rim State Park84°F77.4°F88.5°F
Port O'Connor84.4°F78.8°F88.5°F
Port Arthur83.5°F78.4°F88.2°F
Port Lavaca84°F78.6°F88.9°F
Holly Beach84°F76.8°F88.9°F
Cameron83.8°F77.7°F88.7°F
Rockport84.2°F79°F88.3°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 San Luis Pass 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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