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Jacksonville Beach in December

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

57.1 °F

Average:

64.1 °F

Maximum:

70.0 °F

Sea water temperature in Jacksonville Beach in December

In the city of Jacksonville Beach, the month of December is somewhat too cool for swimming. The minimum recorded temperature during this month was 57.1°F on December 30, 2022, with an average temperature being 64.1°F and a maximum temperature reaching 70.0°F on December 1, 2020.

Most people would find such water temperature somewhat too cold for swimming. Throughout the month of December, the sea temperature gradually gets colder. Starting with an average temperature of 66.1°F at the beginning of the month, it steadily decreases to around 62.2°F by the end.
Date 10 years average 2024 2023
Dec 1 66.7°F 68.9°F 65.9°F
Dec 2 66.4°F 68.0°F 65.4°F
Dec 3 66.5°F 67.5°F 65.7°F
Dec 4 66.4°F 65.7°F 65.8°F
Dec 5 66.1°F 64.7°F 65.6°F
Dec 6 65.9°F 64.5°F 65.3°F
Dec 7 66.1°F 64.7°F 64.9°F
Dec 8 65.8°F 63.4°F 64.1°F
Dec 9 65.6°F 62.7°F 64.1°F
Dec 10 65.3°F 63.1°F 64.7°F
Dec 11 65.2°F 63.2°F 65.5°F
Dec 12 64.8°F 64.1°F 64.3°F
Dec 13 64.6°F 64.0°F 64.4°F
Dec 14 64.6°F 63.1°F 64.8°F
Dec 15 64.1°F 62.8°F 62.4°F
Dec 16 64.1°F 62.2°F 62.6°F
Dec 17 64.0°F 60.5°F 62.9°F
Dec 18 64.0°F 59.6°F 63.1°F
Dec 19 63.9°F 62.4°F 61.2°F
Dec 20 64.1°F 63.2°F 61.3°F
Dec 21 63.2°F 62.7°F 59.5°F
Dec 22 63.0°F 61.8°F 59.1°F
Dec 23 62.6°F 61.4°F 58.5°F
Dec 24 62.2°F 60.5°F 59.5°F
Dec 25 62.1°F 59.8°F 59.4°F
Dec 26 61.8°F 58.5°F 59.3°F
Dec 27 61.7°F 58.9°F 58.7°F
Dec 28 62.0°F 59.5°F 58.9°F
Dec 29 61.7°F 58.9°F 58.0°F
Dec 30 61.8°F 59.1°F 58.9°F
Dec 31 62.0°F 60.1°F 59.4°F

Sea water temperature in Jacksonville Beach by month

In Jacksonville Beach, the months May through October offer comfortable swimming conditions, which amounts to 190 swimming days. The warmest water in Jacksonville Beach was recorded on July 25, 2016, reaching a 86.5°F. While the coldest temperature occurred on January 19, 2018, dipping to 50.0°F. The average readings by season are 61.5°F in Winter, 69.4°F in Spring, 82.1°F in Summer, and 77.2°F in Autumn. December's average temperature is a slight drop from November's average of 71.0°F. In January, the temperature is expected to decrease further, potentially averaging around 60.6°F.