Kumamoto weather in January 2026

Expect daytime maximum temperatures of 50°F in Kumamoto, Japan in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 17 days with some rainfall and typically 2.4 inches of rainfall in the month.

  • 50°F maximum daytime temperature in January in Kumamoto50
    50°F max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in January in Kumamoto17
    17 days with some rainfall
  • 32°F minimum night-time temperature in January in Kumamoto32
    32°F min night temperature
  • 10 hours of daylight per day in January in Kumamoto10
    10 hours of daylight per day
  • No heat & humidity in January in Kumamoto0
    No heat & humidity
  • 2.4 inches monthly rainfall in January in Kumamoto2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Kumamoto3
    3 (Moderate) UV index
  • 61°F sea temperature in January in Kumamoto61
    61°F sea temperature

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The January weather guide for Japan (Kumamoto) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about Japan

How warm is it in Kumamoto in January?

Daytime temperatures usually reach 50°F in Kumamoto in January, falling to 32°F at night.

How sunny is it in Kumamoto in January?

There are normally 6 hours of bright sunshine each day in Kumamoto in January - that's 59% of daylight hours.

How warm is the sea around Kumamoto in January?

The average sea temperature around Kumamoto in January is 59°F.

Does it rain in Kumamoto in January?

There are usually 9 days with some rain in Kumamoto in January and the average monthly rainfall is 1.7 inches.

Kumamoto January sunrise & sunset times

Browse the sunrise and sunset times for Kumamoto in January 2026. Select a month to view Kumamoto sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:20 17:22
Friday, 16th January 2026 07:20 17:34
Saturday, 31st January 2026 07:13 17:48

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