Okayama weather in January 2026

Expect daytime maximum temperatures of 48°F in Okayama, Japan in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 1.6 inches of rainfall in the month.

  • 48°F maximum daytime temperature in January in Okayama48
    48°F max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in January in Okayama18
    18 days with some rainfall
  • 32°F minimum night-time temperature in January in Okayama32
    32°F min night temperature
  • 10 hours of daylight per day in January in Okayama10
    10 hours of daylight per day
  • No heat & humidity in January in Okayama0
    No heat & humidity
  • 1.6 inches monthly rainfall in January in Okayama1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Okayama3
    3 (Moderate) UV index

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The January weather guide for Japan (Okayama) 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 Okayama in January?

Daytime temperatures usually reach 48°F in Okayama in January, falling to 32°F at night.

How sunny is it in Okayama in January?

There are normally 5 hours of bright sunshine each day in Okayama in January - that's 45% of daylight hours.

Does it rain in Okayama in January?

There are usually 18 days with some rain in Okayama in January and the average monthly rainfall is 1.6 inches.

Okayama January sunrise & sunset times

Browse the sunrise and sunset times for Okayama in January 2026. Select a month to view Okayama sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:11 17:04
Friday, 16th January 2026 07:11 17:17
Saturday, 31st January 2026 07:03 17:32

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