ClimateForecastDecemberJanuary >>

Tonami Climate by Month

The climate in Tonami 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 has a relatively rain/snowy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

In Tonami, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C in August to a chilly 6°C in January. Nighttime temperatures can drop, with averages reaching -2°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Tonami experiences significant rain/snowfall throughout the year, averaging 2440 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, July, sees around 290 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, April, still receives a respectable 158 mm of rainfall.

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

The best time of year to visit Tonami 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.

The average rainfall figures in Tonami are quite high. Throughout the year, you have a chance of prolonged precipitation. So no matter what time of year you go, you will always have to deal with a high number of rainy days. This makes it more challenging to point out the best time of year to visit. Other facts from our historical weather data:
  • When is summer in Tonami?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Tonami?
    August has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Tonami?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Tonami?
    July tops the wettest month list with 290 mm of rainfall.
  • Which is the driest month in Tonami?
    April is the driest month with 158 mm of precipitation.

  • 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 Tonami

    Fri   Dec 13
    9°C | -2°C
    NE 7 km/h
    20 mm
    overcast and heavy rain

    overcast and heavy rain

    Sat   Dec 14
    5°C | -3°C
    SW 7 km/h
    20 mm
    partly cloudy and sleet

    partly cloudy and sleet

    Sun   Dec 15
    7°C | -4°C
    SW 22 km/h
    10 mm
    broken clouds and rain

    broken clouds and rain