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Yamanouchi Climate by Month

Yamanouchi experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It is also known for its large amounts of rain/snowfall. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

The climate in Yamanouchi is known for significant temperature differences throughout the year, making the weather dynamic. Typically, daytime temperatures range from a comfortable 28°C in August to a very cold 2°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to -7°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Yamanouchi has a notably wet climate with abundant precipitation, recording 1874 mm of rain/snowfall per year. The climate in Yamanouchi shows significant variation throughout the year. Expect heavy rainfall in July, with an average of 246 mm of precipitation over 23 rainy days. In contrast, November offers drier and sunnier days, with around 105 mm of rainfall over 17 rainy days.

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

Sunshine over the year

Yamanouchi offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between May (7.0 hours daily) and January (4.3 hours daily) provides a bit of variety for visitors and residents.

Monthly hours of sunshine

Data from: Nagano, Japan (27 KM, 17 Miles).

Daily hours of sunshine

Data from: Nagano, Japan (27 KM, 17 Miles).

The best time of year to visit Yamanouchi 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:
  • Which months have the greatest rainfall in Yamanouchi?
    Most rainfall (rainy season) is seen in June, July, August, September and October.
  • Which is the warmest month in Yamanouchi?
    August has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Yamanouchi?
    The coldest month is January with an average maximum temperature of 2°C.
  • Which is the wettest month in Yamanouchi?
    July tops the wettest month list with 246 mm of rainfall.
  • Which is the driest month in Yamanouchi?
    November is the driest month with 105 mm of precipitation.
  • Which is the sunniest month in Yamanouchi?
    May is the sunniest month with an average of 209 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.

    Forecast for Yamanouchi

    Sat   Nov 23
    1°C | -3°C
    NW 14 km/h
    14 mm
    broken clouds and  chance of snow

    broken clouds and chance of snow

    Sun   Nov 24
    2°C | -2°C
    N 11 km/h
    2.3 mm
    overcast and  chance of slight snow

    overcast and chance of slight snow

    Mon   Nov 25
    6°C | -3°C
    N 7 km/h
    almost clear and no rain

    almost clear and no rain