Nikko weather in December 2025

Expect daytime maximum temperatures of 39°F in Nikko, Japan in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 1.6 inches of rainfall in the month, which might fall as snow.

  • 39°F maximum daytime temperature in December in Nikko39
    39°F max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in December in Nikko19
    19 days with some rainfall
  • 23°F minimum night-time temperature in December in Nikko23
    23°F min night temperature
  • 10 hours of daylight per day in December in Nikko10
    10 hours of daylight per day
  • No heat & humidity in December in Nikko0
    No heat & humidity
  • 1.6 inches monthly rainfall in December in Nikko1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Nikko2
    2 (Low) UV index

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

Daytime temperatures usually reach 54°F in Nikko in December, falling to 37°F at night.

How sunny is it in Nikko in December?

There are normally 6 hours of bright sunshine each day in Nikko in December - that's 57% of daylight hours.

How warm is the sea around Nikko in December?

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

Does it rain in Nikko in December?

There are usually 9 days with some rain in Nikko in December and the average monthly rainfall is 1.7 inches.

Nikko December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:35 16:26
Tuesday, 16th December 2025 06:47 16:27
Wednesday, 31st December 2025 06:54 16:35

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