Climate Insights for Kushiro

The climate in Kushiro is cool. The average annual temperature is 8°C and approximately 1151mm of precipitation falls per year. Kushiro receives a notable amount of rainfall throughout the year, including during its driest month. Kushiro is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are February, January, March, when temperatures can drop to -4°C. Snowfall occurs from January to December, with around 150cm accumulating over the season.

Temperatures in Kushiro vary considerably across the year, with a 23°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 19°C with a mean of 18°C. The coldest month is February, when overnight lows fall to -4°C and the daily average is -2°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Kushiro is a moderately rainy area, receiving approximately 1151mm of precipitation annually, which averages out to around 96mm per month. The wettest month is August, averaging 189mm of rainfall. October and June also tend to see above-average precipitation. The driest month is January, with just 44mm. That's 146mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 150cm accumulating over the season. February typically sees the most snow at around 36cm.

Kushiro is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 7km/h in winter, 6km/h in spring, 5km/h in summer, 6km/h in autumn.

It is currently spring in Kushiro, which began on March 20, 2026. Kushiro 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 19°C, while the coldest stretch bottoms out in February near -4°C. Summer is next, beginning on June 21, 2026 — 3 days from now.

The table below shows monthly climate averages for Kushiro 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.