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Fukuoka in January

Find out everything about the water temperature in Fukuoka 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:

54.9 °F

Average:

57.9 °F

Maximum:

61.6 °F

Sea water temperature in Fukuoka in January

In the city of Fukuoka, the month of January is too cold for swimming. The minimum recorded temperature during this month was 54.9°F on January 22, 2025, with an average temperature being 57.9°F and a maximum temperature reaching 61.6°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 57.9°F throughout the month, with minimal changes.
Date 10 years average 2025 2024
Jan 1 59.3°F 58.0°F 59.6°F
Jan 2 59.2°F 57.9°F 59.6°F
Jan 3 59.1°F 57.8°F 59.4°F
Jan 4 58.9°F 57.5°F 59.4°F
Jan 5 58.8°F 57.4°F 58.4°F
Jan 6 58.8°F 57.6°F 58.4°F
Jan 7 58.8°F 57.6°F 59.0°F
Jan 8 58.7°F 57.7°F 58.6°F
Jan 9 58.7°F 57.9°F 58.4°F
Jan 10 58.7°F 57.7°F 58.7°F
Jan 11 58.8°F 57.8°F 58.7°F
Jan 12 58.5°F 57.8°F 58.3°F
Jan 13 58.3°F 57.5°F 57.3°F
Jan 14 58.2°F 57.6°F 57.2°F
Jan 15 58.1°F 57.6°F 57.3°F
Jan 16 57.9°F 57.6°F 57.3°F
Jan 17 57.8°F 57.6°F 57.2°F
Jan 18 57.8°F 57.6°F 57.5°F
Jan 19 57.3°F 56.3°F 57.5°F
Jan 20 57.1°F 55.2°F 57.6°F
Jan 21 56.9°F 55.7°F 57.7°F
Jan 22 56.9°F 54.9°F 57.3°F
Jan 23 57.0°F 55.4°F 57.1°F
Jan 24 57.0°F 55.2°F 57.2°F
Jan 25 56.9°F 55.8°F 57.0°F
Jan 26 57.0°F 55.9°F 56.5°F
Jan 27 56.9°F 56.0°F 56.7°F
Jan 28 57.0°F 56.2°F 56.8°F
Jan 29 56.9°F 56.3°F 56.8°F
Jan 30 56.9°F 56.3°F 56.7°F
Jan 31 56.8°F 56.2°F 56.7°F

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through September offer comfortable swimming conditions, which amounts to 109 swimming days. The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 5, 2022, dipping to 52.0°F. The average readings by season are 58.6°F in Winter, 60.2°F in Spring, 77.4°F in Summer, and 73.0°F in Autumn. January's average temperature is a slight drop from December's average of 62.3°F. In February, the temperature is expected to decrease further, potentially averaging around 55.5°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kitakyushu 55.0°F 30mi
Shimonoseki 55.2°F 39mi
Kumamoto 54.6°F 57mi
Nagasaki 59.1°F 66mi

* current water temperature in this city

** straight line distance from Fukuoka