Hakodate weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Hakodate in September. Check more long-term weather averages for Hakodate in September before you book your next holiday to Japan in 2025/2026.

  • 22°C maximum daytime temperature in September in Hakodate22
    22°C max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in September in Hakodate18
    18 days with some rainfall
  • 14°C minimum night-time temperature in September in Hakodate14
    14°C min night temperature
  • 12 hours of daylight per day in September in Hakodate12
    12 hours of daylight per day
  • No heat & humidity in September in Hakodate0
    No heat & humidity
  • 171 mm monthly rainfall in September in Hakodate171
    171 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Hakodate6
    6 (High) UV index
  • 22°C sea temperature in September in Hakodate22
    22°C sea temperature

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

Daytime temperatures usually reach 22°C in Hakodate in September, falling to 14°C at night.

How sunny is it in Hakodate in September?

There are normally 5 hours of bright sunshine each day in Hakodate in September - that's 43% of daylight hours.

How warm is the sea around Hakodate in September?

The average sea temperature around Hakodate in September is 22°C.

Does it rain in Hakodate in September?

There are usually 18 days with some rain in Hakodate in September and the average monthly rainfall is 171mm.

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

On average 1.2 days in September in Hakodate are likely to be affected by the passage of one or more tropical storms.

Hakodate September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:03 18:11
Monday, 15th September 2025 05:17 17:47
Tuesday, 30th September 2025 05:33 17:21

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