Sapporo weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Sapporo in September. Check more long-term weather averages for Sapporo in September before you book your next holiday to Japan in 2025/2026.

  • 22°C maximum daytime temperature in September in Sapporo22
    22°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in September in Sapporo18
    18 days with some rainfall
  • 13°C minimum night-time temperature in September in Sapporo13
    13°C min night temperature
  • 12 hours of daylight per day in September in Sapporo12
    12 hours of daylight per day
  • No heat & humidity in September in Sapporo0
    No heat & humidity
  • 139 mm monthly rainfall in September in Sapporo139
    139 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Sapporo6
    6 (High) UV index

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The September weather guide for Japan (Sapporo) 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 / mm)  |  Imperial (°F / inches)

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More about Japan

How hot is it in Sapporo in September?

Daytime temperatures usually reach 22°C in Sapporo in September, falling to 13°C at night.

How sunny is it in Sapporo in September?

There are normally 6 hours of bright sunshine each day in Sapporo in September - that's 44% of daylight hours.

Does it rain in Sapporo in September?

There are usually 18 days with some rain in Sapporo in September and the average monthly rainfall is 139mm.

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

On average 1.1 days in September in Sapporo are likely to be affected by the passage of one or more tropical storms.

Sapporo September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:59 18:10
Monday, 15th September 2025 05:14 17:45
Tuesday, 30th September 2025 05:30 17:18

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