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Niihama in April

Find out everything about the water temperature in Niihama 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:

53.4 °F

Average:

58.2 °F

Maximum:

62.9 °F

Sea water temperature in Niihama in April

In the city of Niihama, the month of April is too cold for swimming. The minimum recorded temperature during this month was 53.4°F on April 4, 2022, with an average temperature being 58.2°F and a maximum temperature reaching 62.9°F on April 26, 2021.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In April, the sea temperature remains relatively stable. The average temperature stays close to 58.2°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Apr 1 56.2°F 56.0°F 57.1°F
Apr 2 56.1°F 56.8°F 56.6°F
Apr 3 56.0°F 57.0°F 56.6°F
Apr 4 56.2°F 57.2°F 56.0°F
Apr 5 56.5°F 57.5°F 56.6°F
Apr 6 56.8°F 58.3°F 57.0°F
Apr 7 56.9°F 58.4°F 57.5°F
Apr 8 57.1°F 58.8°F 56.9°F
Apr 9 57.3°F 58.9°F 57.4°F
Apr 10 57.4°F 58.1°F 57.2°F
Apr 11 57.1°F 56.8°F 56.8°F
Apr 12 57.3°F 56.8°F 57.4°F
Apr 13 57.7°F 57.3°F 58.4°F
Apr 14 58.2°F 60.4°F 62.4°F
Apr 15 57.8°F 60.2°F 62.1°F
Apr 16 57.7°F 59.6°F 61.7°F
Apr 17 57.8°F 61.1°F 58.8°F
Apr 18 57.9°F 60.8°F 57.7°F
Apr 19 58.1°F 60.4°F 59.8°F
Apr 20 58.5°F 61.3°F 59.6°F
Apr 21 58.8°F 61.5°F 59.9°F
Apr 22 59.4°F 61.6°F 59.9°F
Apr 23 59.6°F 61.8°F 57.6°F
Apr 24 60.0°F 62.0°F 58.7°F
Apr 25 60.1°F 62.5°F 59.3°F
Apr 26 60.2°F 59.8°F 59.9°F
Apr 27 60.3°F 60.4°F 58.7°F
Apr 28 60.5°F 61.8°F 58.7°F
Apr 29 60.9°F 61.6°F 59.7°F
Apr 30 61.0°F 61.5°F 59.9°F

Sea water temperature in Niihama by month

In Niihama, the months July through October offer comfortable swimming conditions, which amounts to 121 swimming days. The warmest water in Niihama was recorded on August 3, 2024, reaching a 88.8°F. While the coldest temperature occurred on February 26, 2022, dipping to 48.0°F. The average readings by season are 56.3°F in Winter, 58.9°F in Spring, 78.2°F in Summer, and 74.5°F in Autumn. The average temperature in April is slightly warmer than March's average of 54.1°F. And in May, the temperature is expected to rise further, potentially reaching an average of 64.5°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Saijō 59.7°F 8mi
Matsuyama 61.1°F 32mi
Marugame 56.4°F 35mi
Fukuyama 56.2°F 36mi
Takamatsu 56.2°F 50mi
Kurashiki 52.9°F 50mi
Hiroshima 59.5°F 58mi
Okayama 55.2°F 60mi

* current water temperature in this city

** straight line distance from Niihama