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Hachioji Climate by Month

The graphs below provide an overview of the climate in Hachioji (Tokyo Prefecture), Japan. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for Hachioji

Wed   Nov 20
9°C | 5°C
N 7 km/h
7.4 mm
overcast and heavy rain

overcast and heavy rain

Thu   Nov 21
15°C | 8°C
NW 7 km/h
6.3 mm
overcast and small chance of heavy rain

overcast and small chance of heavy rain

Fri   Nov 22
17°C | 7°C
E 11 km/h
almost clear and no rain

almost clear and no rain

The best time of year to visit Hachioji in Japan

During the months of May, June and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Hachioji?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Hachioji?
    August has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Hachioji?
    The coldest month is January with an average maximum temperature of 9°C.
  • Which is the wettest month in Hachioji?
    September tops the wettest month list with 255 mm of rainfall.
  • Which is the driest month in Hachioji?
    December is the driest month with 73 mm of precipitation.
  • Which is the sunniest month in Hachioji?
    January is the sunniest month with an average of 202 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.