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Niigata in December

Find out everything about the water temperature in Niigata 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:

55.3 °F

Average:

59.1 °F

Maximum:

63.2 °F

Sea water temperature in Niigata in December

In the city of Niigata, the month of December is too cold for swimming. The minimum recorded temperature during this month was 55.3°F on December 31, 2017, with an average temperature being 59.1°F and a maximum temperature reaching 63.2°F on December 1, 2023.

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 61.0°F at the beginning of the month, it steadily decreases to around 57.3°F by the end.
Date 10 years average 2023 2022
Dec 1 62.0°F 63.2°F 62.7°F
Dec 2 61.8°F 63.0°F 62.5°F
Dec 3 61.5°F 62.8°F 62.6°F
Dec 4 61.3°F 63.0°F 62.3°F
Dec 5 61.0°F 62.5°F 62.1°F
Dec 6 60.7°F 62.3°F 62.0°F
Dec 7 60.6°F 62.0°F 62.1°F
Dec 8 60.5°F 62.1°F 61.8°F
Dec 9 60.2°F 60.5°F 61.6°F
Dec 10 60.3°F 60.5°F 61.5°F
Dec 11 60.3°F 60.5°F 61.3°F
Dec 12 60.1°F 60.5°F 61.1°F
Dec 13 59.9°F 60.7°F 60.9°F
Dec 14 59.6°F 60.4°F 60.6°F
Dec 15 59.4°F 60.1°F 60.4°F
Dec 16 59.2°F 59.8°F 60.2°F
Dec 17 58.9°F 59.5°F 59.8°F
Dec 18 58.7°F 59.2°F 59.6°F
Dec 19 58.5°F 59.0°F 59.4°F
Dec 20 58.2°F 58.7°F 59.2°F
Dec 21 58.1°F 58.7°F 59.0°F
Dec 22 57.9°F 58.4°F 57.7°F
Dec 23 57.7°F 58.3°F 57.4°F
Dec 24 57.5°F 58.0°F 57.5°F
Dec 25 57.6°F 58.0°F 58.1°F
Dec 26 57.5°F 58.0°F 58.6°F
Dec 27 57.3°F 58.1°F 58.3°F
Dec 28 57.2°F 57.6°F 57.9°F
Dec 29 57.0°F 57.6°F 57.7°F
Dec 30 56.8°F 57.3°F 57.4°F
Dec 31 56.4°F 56.3°F 57.4°F

Sea water temperature in Niigata by month

In Niigata, the months July through September offer comfortable swimming conditions, which amounts to 93 swimming days. The warmest water in Niigata was recorded on August 6, 2023, reaching a 86.6°F. While the coldest temperature occurred on March 16, 2014, dipping to 46.6°F. The average readings by season are 54.5°F in Winter, 53.6°F in Spring, 75.1°F in Summer, and 71.5°F in Autumn. December's average temperature is a slight drop from November's average of 65.0°F. In January, the temperature is expected to decrease further, potentially averaging around 53.9°F.