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Yamaguchi Climate by Month

The climate in Yamaguchi is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to cold in the cooler months. It also experiences much rain/snowfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

In Yamaguchi, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 32°C in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C. At night, expect cooler temperatures, averaging 2°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Yamaguchi experiences significant rain/snowfall throughout the year, averaging 1731 mm of precipitation annually. Yamaguchi can be quite wet during July, receiving approximately 278 mm of precipitation over 18 rainy days. In contrast December, experiences much drier conditions, with 71 mm of rainfall, spread across 20 rainy days.

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

Sunshine over the year

Yamaguchi can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.9 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 3.5 hours of sunlight per day.

Monthly hours of sunshine

Data from: Kitakyushu, Japan (74 KM, 46 Miles).

Daily hours of sunshine

Data from: Kitakyushu, Japan (74 KM, 46 Miles).

The best time of year to visit Yamaguchi in Japan

During the months of May 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:
  • Which months have the greatest rainfall in Yamaguchi?
    Most rainfall (rainy season) is seen in May, June, July, August and September.
  • Which is the warmest month in Yamaguchi?
    August has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Yamaguchi?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Yamaguchi?
    July tops the wettest month list with 278 mm of rainfall.
  • Which is the driest month in Yamaguchi?
    December is the driest month with 71 mm of precipitation.
  • Which is the sunniest month in Yamaguchi?
    May is the sunniest month with an average of 207 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 Yamaguchi

    Sat   Nov 23
    13°C | 4°C
    N 14 km/h
    0.9 mm
    broken clouds and  chance of slight rain

    broken clouds and chance of slight rain

    Sun   Nov 24
    13°C | 2°C
    N 14 km/h
    broken clouds and no rain

    broken clouds and no rain

    Mon   Nov 25
    15°C | 1°C
    SE 11 km/h
    almost clear and no rain

    almost clear and no rain