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Niihama in January

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

51.0 °F

Average:

55.4 °F

Maximum:

59.2 °F

Sea water temperature in Niihama in January

In the city of Niihama, the month of January is too cold for swimming. The minimum recorded temperature during this month was 51.0°F on January 21, 2021, with an average temperature being 55.4°F and a maximum temperature reaching 59.2°F on January 1, 2017.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In January, the sea temperature remains relatively stable. The average temperature stays close to 55.4°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Jan 1 57.1°F 57.7°F 55.4°F
Jan 2 56.9°F 57.3°F 55.9°F
Jan 3 56.8°F 57.7°F 55.9°F
Jan 4 56.7°F 57.1°F 55.3°F
Jan 5 56.6°F 56.7°F 54.4°F
Jan 6 56.3°F 56.6°F 54.8°F
Jan 7 55.9°F 56.1°F 54.3°F
Jan 8 55.7°F 56.3°F 53.6°F
Jan 9 55.5°F 55.8°F 52.9°F
Jan 10 55.3°F 56.0°F 53.2°F
Jan 11 55.3°F 56.1°F 53.0°F
Jan 12 55.0°F 55.4°F 51.4°F
Jan 13 54.9°F 54.2°F 52.6°F
Jan 14 55.0°F 54.6°F 53.5°F
Jan 15 55.2°F 53.9°F 54.3°F
Jan 16 55.3°F 54.5°F 54.7°F
Jan 17 55.4°F 55.0°F 53.3°F
Jan 18 55.6°F 55.3°F 53.2°F
Jan 19 55.6°F 55.8°F 53.5°F
Jan 20 55.3°F 56.0°F 54.2°F
Jan 21 54.8°F 56.2°F 53.0°F
Jan 22 54.9°F 55.1°F 53.5°F
Jan 23 55.1°F 55.2°F 53.8°F
Jan 24 55.2°F 55.8°F 54.1°F
Jan 25 54.9°F 55.0°F 53.3°F
Jan 26 54.4°F 53.9°F 52.9°F
Jan 27 54.4°F 54.1°F 53.2°F
Jan 28 54.6°F 54.2°F 52.4°F
Jan 29 54.5°F 53.2°F 52.1°F
Jan 30 54.3°F 53.6°F 52.1°F
Jan 31 54.2°F 54.2°F 51.1°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. January's average temperature is a slight drop from December's average of 60.3°F. In February, the temperature is expected to decrease further, potentially averaging around 53.2°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