Hiroshima weather in December 2025

Expect 11°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Hiroshima in December based on long-term weather averages. There is usually 17 days with some rainfall and 47 mm of average monthly rainfall in December.

  • 11°C maximum daytime temperature in December in Hiroshima11
    11°C max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in December in Hiroshima17
    17 days with some rainfall
  • 2°C minimum night-time temperature in December in Hiroshima2
    2°C 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
  • 47 mm monthly rainfall in December in Hiroshima47
    47 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Hiroshima3
    3 (Moderate) UV index
  • 17°C sea temperature in December in Hiroshima17
    17°C 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 / mm)  |  Imperial (°F / inches)

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More about Japan

How warm is it in Hiroshima in December?

Daytime temperatures usually reach 11°C in Hiroshima in December, falling to 2°C 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 17°C.

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 47mm.

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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