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Sanjo Weather and Climate: A Comprehensive Guide

The temperature in Sanjo can vary greatly throughout the year. The temperatures shift from very warm to cold. It also experiences much rain/snowfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very warm to chilly in Sanjo. Average daytime temperatures reach a very warm 31°C in August. In February, the coolest month of the year, temperatures drop to a chilly 6°C.

At night, you can expect cooler temperatures, with averages dropping to around -1°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Sanjo has a relatively rain/snowy climate with high precipitation levels, averaging 1918 mm of rain/snowfall annually. Sanjo experiences moderate seasonal variation in rainfall, with monthly averages ranging from 229 mm in July, the wettest month, and 108 mm in May, the driest month.

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

Sunshine over the year

Sanjo can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 6.4 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 1.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Nagaoka, Japan (22 KM, 13 Miles).

Daily hours of sunshine

Data from: Nagaoka, Japan (22 KM, 13 Miles).

Forecast for Sanjo

Sat   Jan 11
4°C | -2°C
S 4 m/s
28 mm
broken clouds and  chance of sleet

broken clouds and chance of sleet

Sun   Jan 12
5°C | -7°C
N 2 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Jan 13
5°C | -1°C
S 3 m/s
26 mm
broken clouds and sleet

broken clouds and sleet

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Sanjo 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 Sanjo?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Sanjo?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Sanjo?
    The coldest month is February with an average maximum temperature of 6°C.
  • Which is the wettest month in Sanjo?
    July tops the wettest month list with 229 mm of rainfall.
  • Which is the driest month in Sanjo?
    May is the driest month with 108 mm of precipitation.
  • Which is the sunniest month in Sanjo?
    August is the sunniest month with an average of 193 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.