Climate Overview
The climate in Tōbetsu is cool. The average annual temperature is 8°C and approximately 1629mm of precipitation falls per year. Tōbetsu receives a notable amount of rainfall throughout the year, including during its driest month. Tōbetsu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -6°C. Tōbetsu experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Tōbetsu vary considerably across the year, with a 31°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 25°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -4°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.
Precipitation
Tōbetsu is a fairly wet location, receiving approximately 1629mm of precipitation annually, which averages out to around 136mm per month. The wettest month is August, averaging 358mm of rainfall. July and June also tend to see above-average precipitation. The driest month is March, with just 58mm. That's 301mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Tōbetsu receives heavy snowfall, accumulating around 402cm annually from January through December. The snowiest month is December, with approximately 121cm. Winter travel should account for significant snow cover.
Wind
Tōbetsu is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
52 days until Autumn
It is currently summer in Tōbetsu, which began on June 21, 2026. Tōbetsu is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 25°C, while the coldest stretch bottoms out in January near -6°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.
Spring
Temperatures range from -2 to 17°C. Precipitation is moderate at around 236mm for the season, averaging 79mm per month. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 13 to 25°C. Rainfall is heavy, totalling around 679mm across the season with a monthly average of 226mm. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 0 to 22°C. Rainfall is heavy, totalling around 371mm across the season with a monthly average of 124mm. Expect around 71cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -6 to 1°C. Rainfall is heavy, totalling around 343mm across the season with a monthly average of 114mm. Expect around 305cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Tōbetsu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
