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Hekinan in December

Find out everything about the water temperature in Hekinan 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:

54.1 °F

Average:

59.8 °F

Maximum:

64.3 °F

Sea water temperature in Hekinan in December

In the city of Hekinan, the month of December is too cold for swimming. The minimum recorded temperature during this month was 54.1°F on December 31, 2021, with an average temperature being 59.8°F and a maximum temperature reaching 64.3°F on December 1, 2020.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of December, the sea temperature gradually gets colder. Starting with an average temperature of 62.1°F at the beginning of the month, it steadily decreases to around 58.0°F by the end.
Date 10 years average 2023 2022
Dec 1 63.6°F 62.7°F 64.3°F
Dec 2 63.2°F 60.5°F 64.0°F
Dec 3 62.8°F 60.8°F 64.0°F
Dec 4 62.5°F 60.9°F 63.6°F
Dec 5 62.3°F 60.8°F 62.7°F
Dec 6 62.1°F 61.0°F 61.2°F
Dec 7 61.9°F 60.8°F 62.6°F
Dec 8 61.2°F 59.9°F 61.9°F
Dec 9 60.9°F 59.4°F 61.8°F
Dec 10 60.6°F 59.3°F 61.3°F
Dec 11 60.7°F 60.7°F 61.0°F
Dec 12 60.4°F 60.4°F 62.0°F
Dec 13 60.0°F 59.9°F 61.7°F
Dec 14 59.7°F 59.8°F 60.9°F
Dec 15 59.6°F 59.7°F 61.0°F
Dec 16 59.5°F 59.8°F 60.2°F
Dec 17 59.0°F 59.0°F 60.2°F
Dec 18 59.0°F 58.8°F 60.1°F
Dec 19 58.7°F 59.1°F 59.5°F
Dec 20 58.4°F 58.7°F 59.0°F
Dec 21 58.1°F 57.0°F 58.4°F
Dec 22 58.4°F 56.5°F 58.7°F
Dec 23 58.4°F 56.0°F 58.4°F
Dec 24 58.3°F 56.1°F 57.1°F
Dec 25 58.3°F 56.8°F 55.5°F
Dec 26 58.3°F 56.1°F 55.7°F
Dec 27 58.0°F 56.1°F 54.3°F
Dec 28 58.0°F 56.5°F 55.1°F
Dec 29 57.6°F 56.8°F 54.3°F
Dec 30 57.8°F 56.4°F 55.6°F
Dec 31 57.4°F 56.2°F 55.3°F

Sea water temperature in Hekinan by month

In Hekinan, the months July through October offer comfortable swimming conditions, which amounts to 119 swimming days. The warmest water in Hekinan was recorded on August 16, 2024, reaching a 87.7°F. While the coldest temperature occurred on February 16, 2018, dipping to 47.8°F. The average readings by season are 56.3°F in Winter, 60.6°F in Spring, 78.5°F in Summer, and 73.4°F in Autumn. December's average temperature is a slight drop from November's average of 67.2°F. In January, the temperature is expected to decrease further, potentially averaging around 55.1°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Nagoya 70.5°F 21mi
Tsu 66.2°F 28mi
Hamamatsu 72.3°F 44mi

* current water temperature in this city

** straight line distance from Hekinan