Nagasaki weather in January 2026

Expect daytime maximum temperatures of 48°F in Nagasaki, Japan in January based on long-term weather averages. There are 3 hours of sunshine per day on average with 21 days with some rainfall and typically 3.4 inches of rainfall in the month.

  • 48°F maximum daytime temperature in January in Nagasaki48
    48°F max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in January in Nagasaki21
    21 days with some rainfall
  • 36°F minimum night-time temperature in January in Nagasaki36
    36°F min night temperature
  • 10 hours of daylight per day in January in Nagasaki10
    10 hours of daylight per day
  • No heat & humidity in January in Nagasaki0
    No heat & humidity
  • 3.4 inches monthly rainfall in January in Nagasaki3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Nagasaki3
    3 (Moderate) UV index
  • 63°F sea temperature in January in Nagasaki63
    63°F sea temperature

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The January weather guide for Japan (Nagasaki) 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 warm is it in Nagasaki in January?

Daytime temperatures usually reach 48°F in Nagasaki in January, falling to 36°F at night.

How sunny is it in Nagasaki in January?

There are normally 3 hours of bright sunshine each day in Nagasaki in January - that's 31% of daylight hours.

How warm is the sea around Nagasaki in January?

The average sea temperature around Nagasaki in January is 63°F.

Does it rain in Nagasaki in January?

There are usually 21 days with some rain in Nagasaki in January and the average monthly rainfall is 3.4 inches.

Nagasaki January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:23 17:25
Friday, 16th January 2026 07:23 17:38
Saturday, 31st January 2026 07:16 17:52

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