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Tokyo in December

Find out everything about the water temperature in Tokyo 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:

58.8 °F

Maximum:

64.0 °F

Sea water temperature in Tokyo in December

In the city of Tokyo, the month of December is too cold for swimming. The minimum recorded temperature during this month was 52.1°F on December 31, 2021, with an average temperature being 58.8°F and a maximum temperature reaching 64.0°F on December 1, 2014.

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 60.8°F at the beginning of the month, it steadily decreases to around 57.0°F by the end.
Date 10 years average 2023 2022
Dec 1 62.2°F 62.1°F 62.2°F
Dec 2 61.8°F 60.9°F 62.0°F
Dec 3 61.3°F 59.7°F 60.9°F
Dec 4 61.0°F 59.3°F 61.1°F
Dec 5 61.0°F 59.2°F 61.1°F
Dec 6 61.0°F 59.4°F 61.3°F
Dec 7 60.7°F 59.7°F 60.4°F
Dec 8 60.1°F 59.2°F 59.2°F
Dec 9 59.7°F 58.4°F 59.6°F
Dec 10 59.6°F 59.2°F 59.8°F
Dec 11 59.3°F 58.3°F 59.0°F
Dec 12 59.4°F 58.4°F 58.3°F
Dec 13 59.2°F 59.9°F 58.4°F
Dec 14 58.9°F 59.9°F 58.9°F
Dec 15 59.1°F 60.1°F 57.8°F
Dec 16 58.9°F 60.4°F 57.8°F
Dec 17 59.0°F 59.7°F 57.8°F
Dec 18 58.7°F 59.8°F 57.7°F
Dec 19 58.2°F 58.9°F 57.5°F
Dec 20 57.9°F 58.6°F 56.7°F
Dec 21 57.5°F 58.4°F 54.5°F
Dec 22 57.8°F 59.0°F 55.1°F
Dec 23 57.7°F 58.4°F 55.8°F
Dec 24 57.5°F 58.2°F 56.2°F
Dec 25 57.3°F 57.8°F 55.0°F
Dec 26 57.2°F 57.4°F 54.8°F
Dec 27 57.1°F 55.8°F 54.9°F
Dec 28 56.6°F 56.0°F 53.8°F
Dec 29 56.4°F 56.1°F 53.0°F
Dec 30 56.0°F 54.2°F 53.0°F
Dec 31 55.8°F 53.9°F 52.2°F

Sea water temperature in Tokyo by month

In Tokyo, the months July through September offer comfortable swimming conditions, which amounts to 103 swimming days. The warmest water in Tokyo was recorded on July 30, 2024, reaching a 88.2°F. While the coldest temperature occurred on February 15, 2022, dipping to 47.3°F. The average readings by season are 55.3°F in Winter, 60.2°F in Spring, 77.3°F in Summer, and 71.5°F in Autumn. December's average temperature is a slight drop from November's average of 64.9°F. In January, the temperature is expected to decrease further, potentially averaging around 54.1°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kawasaki 64.9°F 12mi
Matsudo 64.4°F 13mi
Honchō 64.4°F 17mi
Yokohama 65.6°F 18mi
Chiba 65.3°F 25mi
Ichihara 65.2°F 25mi
Kisarazu 64.7°F 25mi
Kimitsu 64.6°F 25mi
Fujisawa 72.0°F 26mi
Futtsu 65.1°F 27mi

* current water temperature in this city

** straight line distance from Tokyo