Nikko weather in September 2025

Expect 68°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Nikko in September. Check more long-term weather averages for Nikko in September before you book your next holiday to Japan in 2025/2026.

  • 68°F maximum daytime temperature in September in Nikko68
    68°F max day temperature
  • 4 hours of sunshine per day
  • 22 days with some rainfall in September in Nikko22
    22 days with some rainfall
  • 54°F minimum night-time temperature in September in Nikko54
    54°F min night temperature
  • 12 hours of daylight per day in September in Nikko12
    12 hours of daylight per day
  • No heat & humidity in September in Nikko0
    No heat & humidity
  • 11.2 inches monthly rainfall in September in Nikko11.2
    11.2 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Nikko8
    8 (Very High) UV index

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The September 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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More about Japan

How hot is it in Nikko in September?

Daytime temperatures usually reach 68°F in Nikko in September, falling to 54°F at night.

How sunny is it in Nikko in September?

There are normally 4 hours of bright sunshine each day in Nikko in September - that's 29% of daylight hours.

Does it rain in Nikko in September?

There are usually 22 days with some rain in Nikko in September and the average monthly rainfall is 11.2 inches.

What is the chance of a typhoon in Nikko in September?

On average 1.3 days in September in Nikko are likely to be affected by the passage of one or more tropical storms.

Nikko September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:12 18:10
Monday, 15th September 2025 05:24 17:49
Tuesday, 30th September 2025 05:36 17:27

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