Hiroshima weather in December 2025

Expect daytime maximum temperatures of 52°F in Hiroshima, Japan in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 17 days with some rainfall and typically 1.9 inches of rainfall in the month.

  • 52°F maximum daytime temperature in December in Hiroshima52
    52°F max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in December in Hiroshima17
    17 days with some rainfall
  • 36°F minimum night-time temperature in December in Hiroshima36
    36°F min night temperature
  • 10 hours of daylight per day in December in Hiroshima10
    10 hours of daylight per day
  • No heat & humidity in December in Hiroshima0
    No heat & humidity
  • 1.9 inches monthly rainfall in December in Hiroshima1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Hiroshima3
    3 (Moderate) UV index
  • 63°F sea temperature in December in Hiroshima63
    63°F sea temperature

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The December weather guide for Japan (Hiroshima) 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 Hiroshima in December?

Daytime temperatures usually reach 52°F in Hiroshima in December, falling to 36°F at night.

How sunny is it in Hiroshima in December?

There are normally 4 hours of bright sunshine each day in Hiroshima in December - that's 40% of daylight hours.

How warm is the sea around Hiroshima in December?

The average sea temperature around Hiroshima in December is 63°F.

Does it rain in Hiroshima in December?

There are usually 17 days with some rain in Hiroshima in December and the average monthly rainfall is 1.9 inches.

Hiroshima December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:58 17:00
Tuesday, 16th December 2025 07:10 17:02
Wednesday, 31st December 2025 07:16 17:10

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