Kumamoto weather in December 2025

Expect 55°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Kumamoto in December. Check more long-term weather averages for Kumamoto in December before you book your next holiday to Japan in 2025/2026.

  • 55°F maximum daytime temperature in December in Kumamoto55
    55°F max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in December in Kumamoto16
    16 days with some rainfall
  • 36°F minimum night-time temperature in December in Kumamoto36
    36°F min night temperature
  • 10 hours of daylight per day in December in Kumamoto10
    10 hours of daylight per day
  • No heat & humidity in December in Kumamoto0
    No heat & humidity
  • 2.0 inches monthly rainfall in December in Kumamoto2.0
    2.0 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Kumamoto3
    3 (Moderate) UV index
  • 64°F sea temperature in December in Kumamoto64
    64°F sea temperature

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The December 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 December?

Daytime temperatures usually reach 55°F in Kumamoto in December, falling to 36°F at night.

How sunny is it in Kumamoto in December?

There are normally 4 hours of bright sunshine each day in Kumamoto in December - that's 42% of daylight hours.

How warm is the sea around Kumamoto in December?

The average sea temperature around Kumamoto in December is 64°F.

Does it rain in Kumamoto in December?

There are usually 16 days with some rain in Kumamoto in December and the average monthly rainfall is 2.0 inches.

Kumamoto December sunrise & sunset times

Browse the sunrise and sunset times for Kumamoto in December 2025. Select a month to view Kumamoto sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:01 17:11
Tuesday, 16th December 2025 07:13 17:13
Wednesday, 31st December 2025 07:19 17:21

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