Climate Overview
The climate in Aomori is temperate. The average annual temperature is 11°C and approximately 1424mm of precipitation falls per year. Aomori receives a notable amount of rainfall throughout the year, including during its driest month. Aomori 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 -4°C. Aomori experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Aomori 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 28°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -4°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
Aomori is a fairly wet location, receiving approximately 1424mm of precipitation annually, which averages out to around 119mm per month. The wettest month is August, averaging 210mm of rainfall. July and October also tend to see above-average precipitation. The driest month is January, with just 86mm. That's 124mm 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. Aomori receives heavy snowfall, accumulating around 283cm annually from January through December. The snowiest month is December, with approximately 75cm. Winter travel should account for significant snow cover.
Wind
Aomori is relatively calm, with an average annual wind speed of 11km/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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/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 13km/h in winter, 12km/h in spring, 9km/h in summer, 10km/h in autumn.
Seasons
3 days until Autumn
It is currently summer in Aomori, which began on June 21, 2026. Aomori 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 28°C, while the coldest stretch bottoms out in January near -4°C. Autumn is next, beginning on September 23, 2026 (3 days from now).
Spring
Temperatures range from 0 to 19°C. Precipitation is moderate at around 292mm for the season, averaging 97mm per month. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 15 to 28°C. Rainfall is heavy, totalling around 489mm across the season with a monthly average of 163mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 3 to 24°C. Rainfall is heavy, totalling around 355mm across the season with a monthly average of 118mm. Expect around 15cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -4 to 2°C. Precipitation is moderate at around 288mm for the season, averaging 96mm per month. Expect around 214cm of snow accumulation during this period. Winds are generally light, averaging 13km/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 Aomori 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.