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Water temperature in Galveston Bay (TX) in December

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Is it warm enough to swim in Galveston Bay in December? Average water temperature in Galveston Bay in December is 62.2°F and therefore is not suitable for comfortable swimming. The warmest sea in Galveston Bay in December is 68.9°F, and the coldest is 53.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Galveston Bay

Changes water temperature in Galveston Bay in December 2024, 2023

To get an accurate forecast for the water temperature in Galveston Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Galveston Bay, 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 166.9°F64°F62.6°F68.4°F
December 265.1°F64.2°F62.2°F68°F
December 364.6°F64°F62.2°F66.6°F
December 464.6°F64°F63°F66.6°F
December 563.3°F64°F62.4°F66.6°F
December 663°F62.6°F62.2°F66.6°F
December 763.1°F62.1°F61°F66.4°F
December 863.1°F63°F60.6°F66.9°F
December 961.2°F63.7°F61.2°F68°F
December 1059.7°F61.7°F59.7°F67.6°F
December 1159.4°F61.2°F59.4°F67.5°F
December 1259.4°F61.2°F59.4°F66.9°F
December 1359.5°F60.6°F59.5°F66.6°F
December 1460.1°F60.1°F60.1°F67.8°F
December 1561°F59°F59°F65.8°F
Day 2024 2023 Min Max
December 1663°F59.2°F59.2°F66°F
December 1763.1°F59.4°F59.4°F66.2°F
December 1863.9°F59.9°F59°F66.4°F
December 1963.5°F60.1°F59.4°F65.3°F
December 2063.3°F60.3°F57.6°F64°F
December 2161.9°F61.2°F58.8°F63.5°F
December 2261.3°F60.8°F58.3°F63.1°F
December 2361.2°F60.8°F57°F63.9°F
December 2461.5°F61°F55°F64.2°F
December 2560.8°F61.3°F54.7°F64.9°F
December 2661.2°F59°F53.8°F66°F
December 2762.8°F59.7°F54°F66.6°F
December 2863.5°F58.5°F54.7°F66.4°F
December 2962.4°F57.7°F54.9°F68.7°F
December 3063.5°F57.2°F55.4°F67.3°F
December 3164.4°F58.8°F56.7°F68.9°F
Galveston Bay water temp chart in December

Average water temperature in Galveston Bay in December over a decade

20152016201720182019
64.9°F63°F62.4°F61.3°F61.9°F
20202021202220232024
61.7°F65.8°F61.3°F61°F62.4°F

Galveston Bay sea state in December

Chart comparing the height of waves in Galveston Bay 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 Galveston Bay in December

Galveston Bay 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
Jamaica Beach63.1°F54°F70°F
San Luis Pass63.7°F54.1°F70°F
Matagorda65.5°F56.8°F71.6°F
Palacios65.1°F55.4°F70.3°F
Port O'Connor65.3°F55.8°F71.4°F
Magnolia Beach65.3°F57.7°F71.1°F
Port Lavaca65.5°F58.1°F71.6°F
Seadrift66.2°F56.3°F72.9°F
Rockport66.4°F58.5°F72.1°F
Port Aransas66.6°F57.4°F72.7°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 Galveston Bay 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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