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Koshu
Weather averages
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Climate in Koshu (Yamanashi), Japan

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Koshu, Japan

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Koshu, Japan

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* Data from: Yamanashi, Japan (4 KM, 2 Miles).

Monthly precipitation

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

Average monthly rainfall, snow, precipitation in Koshu, Japan

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Koshu, Japan

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Koshu, Japan

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* Data from: Yamanashi, Japan (4 KM, 2 Miles).

Weather Forecasts for Koshu

Sat   Apr 20
24°C | 8°C
W 7 km/h
broken clouds and no rain

broken clouds and no rain

hourly forecast
Sun   Apr 21
19°C | 11°C
SW 4 km/h
0.5 mm
overcast and chance of slight rain

overcast and chance of slight rain

hourly forecast
Mon   Apr 22
18°C | 11°C
E 7 km/h
7.2 mm
overcast and rain

overcast and rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Koshu in Japan

During the months of June and September 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 the rainy season in Koshu?
    Rainy season in Koshu occurs in the months of May, June, July, August, September and October.
  • Which is the warmest month in Koshu?
    August has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Koshu?
    The coldest month is January with an average maximum temperature of 4°C.
  • Which is the wettest month in Koshu?
    September tops the wettest month list with 240 mm of rainfall.
  • Which is the driest month in Koshu?
    December is the driest month with 66 mm of precipitation.
  • Which is the sunniest month in Koshu?
    August is the sunniest month with an average of 201 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.

     

     

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