Shiojiri Climate by Month
The climate in Shiojiri is marked by big temperature swings throughout the year.
Temperatures range from warm during the warmest months
to cold in the cooler months.
It also has a notably wet climate with much precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
In Shiojiri, temperatures differ significantly between summer and winter months. Average daytime temperatures range from a comfortable 28°C in August, the warmest time of the year, to a chilly 2°C during cooler months like January. At night, temperatures typically average around -8°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Shiojiri experiences significant rain/snowfall throughout the year, averaging 1948 mm of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, July receives heavy rainfall, averaging 245 mm of precipitation, recorded across 22 rainy days. In contrast, the drier season, December brings less snow/rainfall, with 109 mm over 17 snowy/rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
While the amount of sunshine in Shiojiri varies throughout the year, all seasons offer their own charm. Enjoy up to 7.0 hours of daily sun in May, and experience slightly darker atmosphere in January, with about 4.3 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is moderate throughout the year in Shiojiri.
Relative humidity over the year
The best time of year to visit Shiojiri 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:
August has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 2°C.
July tops the wettest month list with 245 mm of rainfall.
December is the driest month with 109 mm of precipitation.
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.
