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Water temperature in San Leon (TX) in December

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Is it warm enough to swim in San Leon in December? Average water temperature in San Leon in December is 62.4°F and therefore is not suitable for comfortable swimming. The warmest sea in San Leon in December is 68.9°F, and the coldest is 54.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in San Leon

Changes water temperature in San Leon in December 2024, 2023

To get an accurate forecast for the water temperature in San Leon 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 Leon, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 163.3°F66°F63.1°F68.2°F
December 262.4°F65.8°F62.4°F68°F
December 363.1°F65.5°F62.8°F66.7°F
December 463.1°F65.3°F63.1°F66.2°F
December 562.8°F65.1°F62.8°F66.2°F
December 662.8°F63.7°F62.6°F66°F
December 762.8°F62.4°F62.4°F66°F
December 862.8°F63.5°F62.1°F67.6°F
December 961.9°F63.7°F61.9°F67.5°F
December 1059.9°F61.9°F59.5°F67.5°F
December 1157.6°F61.2°F57.6°F67.8°F
December 1258.3°F61.3°F58.3°F67.1°F
December 1358.6°F61.2°F58.6°F67.5°F
December 1459°F59°F59°F68.5°F
December 1561°F58.6°F58.6°F65.8°F
Day 2024 2023 Min Max
December 1663°F59.2°F59.2°F66.4°F
December 1763.9°F58.5°F58.5°F66.2°F
December 1863.7°F59.4°F59.4°F65.8°F
December 1963.5°F59.4°F59.4°F64.8°F
December 2063.3°F60.4°F56.5°F63.7°F
December 2160.8°F60.6°F57.4°F63.1°F
December 2259.7°F60.4°F59.5°F63°F
December 2359.9°F60.4°F59.2°F63.1°F
December 2461.9°F61.5°F58.1°F63.7°F
December 2560.6°F61.3°F57.9°F64°F
December 2660.8°F59.5°F57.2°F64.8°F
December 2762.2°F59.2°F56.5°F66.2°F
December 2863.5°F57.4°F55.8°F66.2°F
December 2963.9°F56.1°F56.1°F68.9°F
December 3064.2°F54.9°F54.9°F68.2°F
December 3165.1°F57°F57°F68.7°F
San Leon water temp chart in December

Average water temperature in San Leon in December over a decade

20152016201720182019
64.6°F62.8°F62.4°F61.5°F61.9°F
20202021202220232024
61.3°F65.3°F62.6°F61°F61.9°F

San Leon sea state in December

Chart comparing the height of waves in San Leon in December 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 San Leon in December

San Leon 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 December?

Want to know where the water temperature in December 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 December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Shoreacres62.6°F55.8°F68.5°F
Galveston Bay62.2°F53.8°F68.9°F
Seabrook62.6°F56.7°F68.7°F
Crystal Beach62.2°F53.8°F68.5°F
Sunny Beach63°F54°F70°F
Jamaica Beach63.1°F54°F70°F
San Luis Pass63.7°F54.1°F70°F
Surfside Beach64.6°F55.8°F70.7°F
Freeport64.8°F56.5°F70.9°F
Sea Rim State Park62.1°F52.3°F69.4°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 Leon 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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