Sendai weather in December 2025

Expect daytime maximum temperatures of 8°C in Sendai in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 21 days with some rainfall.

  • 8°C maximum daytime temperature in December in Sendai8
    8°C max day temperature
  • 4 hours of sunshine per day
  • 21 days with some rainfall in December in Sendai21
    21 days with some rainfall
  • 1°C minimum night-time temperature in December in Sendai1
    1°C min night temperature
  • 10 hours of daylight per day in December in Sendai10
    10 hours of daylight per day
  • No heat & humidity in December in Sendai0
    No heat & humidity
  • 38 mm monthly rainfall in December in Sendai38
    38 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Sendai2
    2 (Low) UV index
  • 14°C sea temperature in December in Sendai14
    14°C sea temperature

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The December weather guide for Japan (Sendai) 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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How warm is it in Sendai in December?

Daytime temperatures usually reach 8°C in Sendai in December, falling to 1°C at night.

How sunny is it in Sendai in December?

There are normally 4 hours of bright sunshine each day in Sendai in December - that's 45% of daylight hours.

How warm is the sea around Sendai in December?

The average sea temperature around Sendai in December is 14°C.

Does it rain in Sendai in December?

There are usually 21 days with some rain in Sendai in December and the average monthly rainfall is 38mm.

Sendai December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:34 16:17
Tuesday, 16th December 2025 06:46 16:17
Wednesday, 31st December 2025 06:53 16:26

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