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Cape Town in December

Find out everything about the water temperature in Cape Town 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:

52.1 °F

Average:

60.1 °F

Maximum:

65.2 °F

Sea water temperature in Cape Town in December

In the city of Cape Town, the month of December is too cold for swimming. The minimum recorded temperature during this month was 52.1°F on December 18, 2023, with an average temperature being 60.1°F and a maximum temperature reaching 65.2°F on December 31, 2015.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In December, the sea temperature remains relatively stable. The average temperature stays close to 60.1°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Dec 1 59.4°F 63.1°F 58.2°F
Dec 2 59.2°F 63.6°F 58.9°F
Dec 3 59.1°F 62.3°F 57.7°F
Dec 4 59.6°F 62.6°F 56.9°F
Dec 5 59.6°F 62.5°F 55.8°F
Dec 6 59.5°F 61.9°F 54.2°F
Dec 7 59.4°F 60.9°F 54.9°F
Dec 8 59.6°F 61.6°F 54.4°F
Dec 9 59.5°F 59.8°F 55.6°F
Dec 10 59.8°F 59.4°F 58.4°F
Dec 11 59.7°F 58.0°F 58.5°F
Dec 12 60.0°F 58.6°F 59.2°F
Dec 13 60.0°F 57.0°F 59.6°F
Dec 14 60.2°F 56.4°F 61.3°F
Dec 15 60.0°F 53.5°F 63.2°F
Dec 16 59.8°F 54.3°F 62.7°F
Dec 17 59.6°F 52.6°F 62.9°F
Dec 18 59.6°F 52.1°F 63.1°F
Dec 19 59.9°F 52.2°F 63.4°F
Dec 20 60.7°F 53.0°F 62.0°F
Dec 21 60.1°F 52.7°F 60.6°F
Dec 22 60.2°F 53.6°F 60.9°F
Dec 23 60.7°F 54.4°F 59.7°F
Dec 24 60.7°F 54.8°F 60.2°F
Dec 25 60.8°F 55.2°F 60.7°F
Dec 26 60.9°F 53.3°F 60.5°F
Dec 27 60.5°F 53.6°F 58.4°F
Dec 28 60.7°F 54.0°F 58.0°F
Dec 29 60.9°F 55.1°F 59.5°F
Dec 30 61.1°F 55.0°F 59.3°F
Dec 31 61.4°F 56.4°F 60.3°F

Sea water temperature in Cape Town by month

In an average year, Cape Town offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Cape Town was recorded on February 13, 2014, reaching a 68.4°F. While the coldest temperature occurred on September 24, 2024, dipping to 47.4°F. The average readings by season are 61.1°F in Winter, 58.1°F in Spring, 57.6°F in Summer, and 57.9°F in Autumn. The average temperature in December is slightly warmer than November's average of 58.9°F. And in January, the temperature is expected to rise further, potentially reaching an average of 62.0°F.