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Niigata in April

Find out everything about the water temperature in Niigata 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:

48.5 °F

Average:

52.0 °F

Maximum:

56.4 °F

Sea water temperature in Niigata in April

In the city of Niigata, the month of April is too cold for swimming. The minimum recorded temperature during this month was 48.5°F on April 1, 2014, with an average temperature being 52.0°F and a maximum temperature reaching 56.4°F on April 30, 2015.

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 52.0°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Apr 1 50.2°F 49.3°F 52.3°F
Apr 2 50.3°F 49.4°F 52.5°F
Apr 3 50.5°F 49.7°F 52.6°F
Apr 4 50.7°F 49.9°F 52.4°F
Apr 5 50.7°F 50.1°F 52.0°F
Apr 6 50.7°F 50.6°F 51.9°F
Apr 7 50.8°F 50.7°F 51.9°F
Apr 8 50.9°F 52.1°F 52.2°F
Apr 9 51.3°F 52.4°F 53.0°F
Apr 10 51.2°F 51.8°F 53.1°F
Apr 11 51.2°F 51.3°F 52.8°F
Apr 12 51.4°F 51.3°F 53.7°F
Apr 13 51.3°F 52.3°F 52.8°F
Apr 14 51.4°F 52.9°F 52.2°F
Apr 15 51.7°F 53.3°F 52.1°F
Apr 16 51.8°F 53.2°F 52.7°F
Apr 17 51.8°F 53.9°F 52.8°F
Apr 18 51.8°F 54.3°F 53.2°F
Apr 19 51.9°F 54.3°F 53.2°F
Apr 20 52.3°F 54.5°F 53.7°F
Apr 21 52.5°F 54.9°F 55.9°F
Apr 22 52.7°F 53.8°F 54.9°F
Apr 23 52.9°F 54.0°F 54.4°F
Apr 24 53.2°F 54.0°F 54.7°F
Apr 25 53.4°F 54.0°F 54.2°F
Apr 26 53.8°F 54.8°F 54.2°F
Apr 27 53.8°F 54.9°F 54.4°F
Apr 28 54.1°F 54.6°F 54.4°F
Apr 29 54.4°F 55.6°F 55.8°F
Apr 30 54.8°F 56.0°F 55.9°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. The average temperature in April is slightly warmer than March's average of 49.4°F. And in May, the temperature is expected to rise further, potentially reaching an average of 59.4°F.