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Tokyo in April

Find out everything about the water temperature in Tokyo in April. Average, minimum and maximum recorded temperatures as well as daily temperature in April for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in April
Minimum:

54.3 °F

Average:

59.6 °F

Maximum:

64.9 °F

Sea water temperature in Tokyo in April

In the city of Tokyo, the month of April is too cold for swimming. The minimum recorded temperature during this month was 54.3°F on April 5, 2019, with an average temperature being 59.6°F and a maximum temperature reaching 64.9°F on April 20, 2024.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of April, the sea temperature gradually gets warmer. Starting with an average temperature of 57.8°F at the beginning of the month, it steadily increases to around 61.7°F by the end.
Date 10 years average 2024 2023
Apr 1 56.9°F 56.0°F 57.7°F
Apr 2 57.3°F 56.6°F 60.0°F
Apr 3 57.5°F 56.8°F 62.3°F
Apr 4 57.9°F 57.1°F 61.0°F
Apr 5 57.7°F 57.3°F 61.4°F
Apr 6 57.9°F 57.5°F 61.1°F
Apr 7 58.0°F 57.5°F 61.4°F
Apr 8 58.1°F 57.6°F 61.8°F
Apr 9 58.4°F 57.7°F 61.2°F
Apr 10 58.6°F 58.4°F 61.4°F
Apr 11 58.7°F 57.7°F 59.6°F
Apr 12 58.8°F 57.8°F 60.4°F
Apr 13 58.7°F 57.4°F 60.1°F
Apr 14 58.7°F 56.9°F 59.9°F
Apr 15 59.1°F 59.7°F 60.1°F
Apr 16 59.4°F 60.1°F 64.1°F
Apr 17 59.5°F 59.8°F 63.1°F
Apr 18 59.7°F 60.3°F 59.7°F
Apr 19 60.0°F 62.6°F 60.2°F
Apr 20 60.4°F 64.9°F 60.3°F
Apr 21 60.9°F 64.5°F 63.8°F
Apr 22 61.2°F 64.3°F 63.5°F
Apr 23 61.3°F 64.0°F 63.8°F
Apr 24 61.3°F 63.6°F 63.7°F
Apr 25 61.5°F 63.3°F 63.5°F
Apr 26 62.0°F 64.0°F 63.4°F
Apr 27 62.1°F 64.0°F 63.4°F
Apr 28 62.2°F 63.9°F 63.4°F
Apr 29 62.5°F 63.9°F 63.6°F
Apr 30 62.6°F 64.0°F 63.8°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. The average temperature in April is slightly warmer than March's average of 54.8°F. And in May, the temperature is expected to rise further, potentially reaching an average of 66.3°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