Shirahama weather in December 2025

Expect daytime maximum temperatures of 12°C in Shirahama, Japan in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 63 mm of rainfall in the month.

  • 12°C maximum daytime temperature in December in Shirahama12
    12°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in December in Shirahama12
    12 days with some rainfall
  • 5°C minimum night-time temperature in December in Shirahama5
    5°C min night temperature
  • 10 hours of daylight per day in December in Shirahama10
    10 hours of daylight per day
  • No heat & humidity in December in Shirahama0
    No heat & humidity
  • 63 mm monthly rainfall in December in Shirahama63
    63 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Shirahama3
    3 (Moderate) UV index
  • 20°C sea temperature in December in Shirahama20
    20°C sea temperature

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

Daytime temperatures usually reach 12°C in Shirahama in December, falling to 5°C at night.

How sunny is it in Shirahama in December?

There are normally 5 hours of bright sunshine each day in Shirahama in December - that's 52% of daylight hours.

How warm is the sea around Shirahama in December?

The average sea temperature around Shirahama in December is 20°C.

Does it rain in Shirahama in December?

There are usually 12 days with some rain in Shirahama in December and the average monthly rainfall is 63mm.

Shirahama December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:45 16:50
Tuesday, 16th December 2025 06:56 16:52
Wednesday, 31st December 2025 07:03 17:00

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