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Galveston in March

Find out everything about the water temperature in Galveston in March. Average, minimum and maximum recorded temperatures as well as daily temperature in March for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in March
Minimum:

56.2 °F

Average:

65.5 °F

Maximum:

73.8 °F

Sea water temperature in Galveston in March

In the city of Galveston, the month of March is somewhat too cool for swimming. The minimum recorded temperature during this month was 56.2°F on March 2, 2022, with an average temperature being 65.5°F and a maximum temperature reaching 73.8°F on March 29, 2020.

Most people would find such water temperature somewhat too cold for swimming. Throughout the month of March, the sea temperature gradually gets warmer. Starting with an average temperature of 63.0°F at the beginning of the month, it steadily increases to around 67.7°F by the end.
Date 10 years average 2025 2024
Mar 1 61.7°F 56.9°F 62.9°F
Mar 2 62.1°F 58.4°F 62.5°F
Mar 3 62.4°F 58.9°F 62.5°F
Mar 4 62.5°F 60.5°F 62.4°F
Mar 5 62.8°F 60.7°F 62.8°F
Mar 6 63.3°F 61.2°F 64.8°F
Mar 7 63.7°F 60.8°F 65.0°F
Mar 8 63.8°F 60.2°F 67.0°F
Mar 9 63.8°F 61.1°F 66.7°F
Mar 10 64.0°F 61.9°F 66.1°F
Mar 11 64.4°F 61.2°F 65.6°F
Mar 12 64.6°F 61.6°F 64.8°F
Mar 13 65.0°F 63.2°F 65.1°F
Mar 14 65.0°F 64.0°F 66.0°F
Mar 15 65.3°F 65.3°F 67.5°F
Mar 16 65.6°F 66.0°F 68.1°F
Mar 17 65.7°F 65.6°F 67.7°F
Mar 18 66.1°F 65.9°F 68.3°F
Mar 19 66.2°F 66.0°F 67.5°F
Mar 20 66.2°F 65.8°F 66.9°F
Mar 21 66.3°F 65.6°F 66.8°F
Mar 22 65.9°F 64.3°F 66.7°F
Mar 23 66.3°F 64.9°F 67.4°F
Mar 24 66.9°F 65.1°F 66.9°F
Mar 25 67.3°F 67.0°F 67.5°F
Mar 26 67.8°F 68.1°F 67.9°F
Mar 27 68.3°F 67.7°F 66.9°F
Mar 28 68.6°F 67.7°F 66.9°F
Mar 29 69.1°F 70.0°F 66.5°F
Mar 30 69.2°F 71.2°F 67.3°F
Mar 31 69.6°F 71.1°F 67.4°F

Sea water temperature in Galveston by month

In Galveston, the months May through October offer comfortable swimming conditions, which amounts to 192 swimming days. The warmest water in Galveston was recorded on August 18, 2024, reaching a 90.5°F. While the coldest temperature occurred on January 26, 2025, dipping to 49.7°F. The average readings by season are 60.1°F in Winter, 71.9°F in Spring, 85.7°F in Summer, and 78.0°F in Autumn. The average temperature in March is slightly warmer than February's average of 59.1°F. And in April, the temperature is expected to rise further, potentially reaching an average of 71.8°F.