Climate Overview
The climate in Hirosaki is temperate. The average annual temperature is 10°C and approximately 1512mm of precipitation falls per year. Hirosaki receives a notable amount of rainfall throughout the year, including during its driest month. Hirosaki 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 -5°C. Hirosaki experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Hirosaki vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -2°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.
Precipitation
Hirosaki is a fairly wet location, receiving approximately 1512mm of precipitation annually, which averages out to around 126mm per month. The wettest month is August, averaging 192mm of rainfall. July and October also tend to see above-average precipitation. The driest month is January, with just 93mm. That's 99mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Hirosaki receives heavy snowfall, accumulating around 237cm annually from January through December. The snowiest month is December, with approximately 65cm. Winter travel should account for significant snow cover.
Wind
Hirosaki is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/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 17km/h in winter, 16km/h in spring, 12km/h in summer, 14km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Hirosaki, which began on March 20, 2026. Hirosaki 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 27°C, while the coldest stretch bottoms out in January near -5°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -1 to 19°C. Rainfall is heavy, totalling around 312mm across the season with a monthly average of 104mm. Winds are moderate at around 16km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 15 to 27°C. Rainfall is heavy, totalling around 485mm across the season with a monthly average of 162mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 3 to 23°C. Rainfall is heavy, totalling around 404mm across the season with a monthly average of 135mm. Expect around 14cm of snow accumulation during this period. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -5 to 2°C. Rainfall is heavy, totalling around 311mm across the season with a monthly average of 104mm. Expect around 181cm of snow accumulation during this period. Winds are moderate at around 17km/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 Hirosaki 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.
