Yamagata weather in September 2025

Expect 72°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Yamagata in September. Check more long-term weather averages for Yamagata in September before you book your next holiday to Japan in 2025/2026.

  • 72°F maximum daytime temperature in September in Yamagata72
    72°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in September in Yamagata20
    20 days with some rainfall
  • 57°F minimum night-time temperature in September in Yamagata57
    57°F min night temperature
  • 12 hours of daylight per day in September in Yamagata12
    12 hours of daylight per day
  • No heat & humidity in September in Yamagata0
    No heat & humidity
  • 6.5 inches monthly rainfall in September in Yamagata6.5
    6.5 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Yamagata7
    7 (High) UV index

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The September weather guide for Japan (Yamagata) 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 Yamagata in September?

Daytime temperatures usually reach 72°F in Yamagata in September, falling to 57°F at night.

How sunny is it in Yamagata in September?

There are normally 4 hours of bright sunshine each day in Yamagata in September - that's 34% of daylight hours.

Does it rain in Yamagata in September?

There are usually 20 days with some rain in Yamagata in September and the average monthly rainfall is 6.5 inches.

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

On average 1.4 days in September in Yamagata are likely to be affected by the passage of one or more tropical storms.

Yamagata September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:08 18:09
Monday, 15th September 2025 05:20 17:47
Tuesday, 30th September 2025 05:33 17:24

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