Kamaishi weather in December 2025

Expect daytime maximum temperatures of 45°F in Kamaishi, Japan in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall.

  • 45°F maximum daytime temperature in December in Kamaishi45
    45°F max day temperature
  • 5 hours of sunshine per day
  • 21 days with some rainfall in December in Kamaishi21
    21 days with some rainfall
  • 28°F minimum night-time temperature in December in Kamaishi28
    28°F min night temperature
  • 9 hours of daylight per day in December in Kamaishi9
    9 hours of daylight per day
  • No heat & humidity in December in Kamaishi0
    No heat & humidity
  • 1.5 inches monthly rainfall in December in Kamaishi1.5
    1.5 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Kamaishi2
    2 (Low) UV index
  • 55°F sea temperature in December in Kamaishi55
    55°F sea temperature

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The December weather guide for Japan (Kamaishi) 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 cold is it in Kamaishi in December?

Daytime temperatures usually reach 45°F in Kamaishi in December, falling to 28°F at night.

How sunny is it in Kamaishi in December?

There are normally 5 hours of bright sunshine each day in Kamaishi in December - that's 50% of daylight hours.

How warm is the sea around Kamaishi in December?

The average sea temperature around Kamaishi in December is 55°F.

Does it rain in Kamaishi in December?

There are usually 21 days with some rain in Kamaishi in December and the average monthly rainfall is 1.5 inches.

Kamaishi December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:33 16:10
Tuesday, 16th December 2025 06:45 16:11
Wednesday, 31st December 2025 06:52 16:19

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