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Nagasaki in December

Find out everything about the water temperature in Nagasaki 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:

58.9 °F

Average:

63.9 °F

Maximum:

68.0 °F

Sea water temperature in Nagasaki in December

In the city of Nagasaki, the month of December is somewhat too cool for swimming. The minimum recorded temperature during this month was 58.9°F on December 31, 2022, with an average temperature being 63.9°F and a maximum temperature reaching 68.0°F on December 1, 2019.

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 65.9°F at the beginning of the month, it steadily decreases to around 62.1°F by the end.
Date 10 years average 2023 2022
Dec 1 66.9°F 66.6°F 67.8°F
Dec 2 66.7°F 66.2°F 67.5°F
Dec 3 66.4°F 65.9°F 67.0°F
Dec 4 66.3°F 65.7°F 66.8°F
Dec 5 66.0°F 65.5°F 66.6°F
Dec 6 66.0°F 65.6°F 66.3°F
Dec 7 65.6°F 64.6°F 65.8°F
Dec 8 65.2°F 63.6°F 65.0°F
Dec 9 64.9°F 62.8°F 63.8°F
Dec 10 64.7°F 63.0°F 63.9°F
Dec 11 64.5°F 63.1°F 63.2°F
Dec 12 64.5°F 62.9°F 63.1°F
Dec 13 64.3°F 62.3°F 63.1°F
Dec 14 64.2°F 63.1°F 63.2°F
Dec 15 64.0°F 64.2°F 63.1°F
Dec 16 64.0°F 64.2°F 63.2°F
Dec 17 63.6°F 64.1°F 63.2°F
Dec 18 63.3°F 62.9°F 62.4°F
Dec 19 62.9°F 62.9°F 62.0°F
Dec 20 62.9°F 62.9°F 61.8°F
Dec 21 62.7°F 62.6°F 62.1°F
Dec 22 62.7°F 62.4°F 61.3°F
Dec 23 62.6°F 62.4°F 61.3°F
Dec 24 62.4°F 62.2°F 61.1°F
Dec 25 62.5°F 62.3°F 60.7°F
Dec 26 62.3°F 62.4°F 60.0°F
Dec 27 61.9°F 61.7°F 59.6°F
Dec 28 61.6°F 61.1°F 59.5°F
Dec 29 61.5°F 60.6°F 59.5°F
Dec 30 61.4°F 60.6°F 59.9°F
Dec 31 61.2°F 60.9°F 58.9°F

Sea water temperature in Nagasaki by month

In Nagasaki, the months July through October offer comfortable swimming conditions, which amounts to 126 swimming days. The warmest water in Nagasaki was recorded on August 22, 2022, reaching a 86.0°F. While the coldest temperature occurred on March 7, 2023, dipping to 55.1°F. The average readings by season are 60.7°F in Winter, 62.5°F in Spring, 78.0°F in Summer, and 74.7°F in Autumn. December's average temperature is a slight drop from November's average of 69.4°F. In January, the temperature is expected to decrease further, potentially averaging around 60.0°F.