Climate and monthly weather forecastAomori, Japan

The climate of Aomori

The city of Aomori, Japan, reveals a contrasting spectrum of climatic conditions characteristic of the Cfa subtype of the Köppen climate classification: Humid Subtropical, with no distinct dry season. It is surrounded by diverse topography, from flatlands to mountains - all complementing the variable weather conditions, varying from cold winter months to balmy summer seasons.

Continuous shifts in Aomori’s weather parameters are seen throughout the year. The year gets underway with January’s lowest temperatures descending till -6°C (21.2°F), marching progressively to a warm peak with highs of 27°C (80.6°F) in August. Simultaneously, the lowest rainfall count is found in April at 77mm (3.03"), steadily increasing to a yearly high of 149mm (5.87") in August.

Some distinctive weather patterns emerge when delving into Aomori’s annual climatic cycle. December to February fall under the grip of an intense cold spell, with maximum temperatures not exceeding 1°C (33.8°F). In direct contrast, bountiful rainfall graces the city from July to September, peaking in August. Furthermore, Aomori experiences very lengthy daylight hours stretching up to 15.1 hours in June and an appreciable amount of sunshine for 7 hours during May.

The best time to visit Aomori

For optimal weather conditions, the period from May to October is the most favorable to experience Aomori. This span combines moderate rainfall, with an average rainfall of between 78mm (3.07") and 119mm (4.69"), and mild temperatures, averaging from 18°C (64.4°F) to 27°C (80.6°F). The seas warm up, providing delightful conditions for water-related activities, with temperatures reaching up to 23.6°C (74.5°F) in August. Additionally, long daylight hours averaging 14.5 to 13.8 hours from May to August allow more than enough daylight for sightseeing and outdoor activities.

The worst time to visit Aomori

Venturing into Aomori between December and February can present challenges. The winter’s biting cold touches upon temperatures as low as -6°C (21.2°F), and the sea turns uninviting with temperatures plunging down to 7.9°C (46.2°F) in March. In addition, reduced daylight hours, reaching a minimum of 9.3 hours in December, limit the opportunities for daytime exploration.

Spring weather in Aomori

Spring ushers in a gradual increase in temperature, from 5°C (41°F) in March to 18°C (64.4°F) in May. The rainfall remains in moderate amounts, average of 82mm (3.23") to 78mm (3.07") across these months, while the sea shows a slow rising trend from 7.9°C (46.2°F) in March to 11.8°C (53.2°F) in May. Daylight hours also expand from 11.9 hours in March, reaching 14.5 hours in May.

Summer weather in Aomori

Summer brings warmer days with a surge in temperature from 21°C (69.8°F) in June to 27°C (80.6°F) by August. Correspondingly, rainfall shows an upward trajectory, rising from 96mm (3.78") in June to 149mm (5.87") in August. Equally noticeable is the sea's temperature increase from 16.1°C (61°F) in June to 23.6°C (74.5°F) in August. Daylight is plenty, averaging about 14.7 hours from June through August.

Autumn weather in Aomori

Autumn sees a cooling shift with temperatures receding from 22°C (71.6°F) in September down to 10°C (50°F) in November. Concurrently, rainfall figures display a downward incline, from 144mm (5.67") in September to 130mm (5.12") in November. The sea’s temperature too witnesses a fall from 22.6°C (72.7°F) in September to 15.3°C (59.5°F) come November. Daylight hours also gradually decrease from 12.5 hours in September to 9.9 hours by November.

Winter weather in Aomori

Winter in Aomori sets in with temperatures dipping down from 3°C (37.4°F) in December to a chilling -6°C (21.2°F) in January and February. Rainfall proves significant, varying from 130mm (5.12") in November to a significant 146mm (5.75") in January. The sea becomes considerably colder, with temperatures falling from 12.2°C (54°F) in December to 8.3°C (46.9°F) in February. Short-lived daylight hours, between 9.3 and 10.6 hours from December to February, add to the wintry feel.

Weather in January

January in Aomori, Japan sees the coldest weather of the year with temperatures falling as low as -6°C (21.2°F). This cold climate promotes frequent snowfall and transforms Aomori into a winter wonderland. Along with chill and snow, January also brings the fewest sunshine hours, casting a distinct pale light throughout the day. Weather in January »

Weather in February

While February retains the biting chill of the previous month with lowest temperatures still hovering at -6°C (21.2°F), subtle shifts in Aomori's winter imminent signs of the approaching spring can be discerned. The daily hours of sunlight start to inch slowly upwards, illuminating the city with a slightly warmer glow. Weather in February »

Weather in March

March displays a noticeable shift towards spring weather in Aomori. The transitory period showcases a fascinating blend of lingering winter elements and wafts of renewing spring air, resulting in a volatile and often unpredictable weather pattern. Weather in March »

Weather in April

With the arrival of April, Aomori fully transitions into the season of renewal. Overnight frosts give way to mild temperatures, and the once snowy landscape transforms into blooming fields of spring flowers. The average high temperature climbs up to 12°C (53.6°F), instigating the awakening of dormant plants and animals. Weather in April »

Weather in May

May graces Aomori with pleasant weather which is an interplay of lingering spring chill and early hints of summer warmth. The city is brimming with blossoms, their fragrances permeating the air. A significant jump in the average high temperate to 18°C (64.4°F) facilitates a multitude of outdoor activities. Weather in May »

Weather in June

June kicks off the summer season in Aomori, marked by longer days and warmer temperatures. With the arrival of the summer solstice, the city basks in over 15.1 daylight hours, the most in a year. The weather encourages travel and swaths of lush green landscape offer an enchanting view to nature enthusiasts. Weather in June »

Weather in July

July in Aomori is vibrant, filled with sunshine, warmth, and summer merriment. The weather is hot, with an average high temperature soaring to 25°C (77°F). The ultraviolet index reaches its peak this month, necessitating sun protection for outdoor activities. Weather in July »

Weather in August

August is typically the hottest month in Aomori with temperatures often peaking at 27°C (80.6°F), creating a vibrant and lively atmosphere. The city is awash with summer colors, complemented by clear blue skies and a sun that insists on extending its stay. Weather in August »

Weather in September

September signals the gradual transition from summer toward cooler fall temperatures in Aomori. The vibrant summer colors begin to give way to the first hints of autumn hues. Even though temperatures drop to a comfortable 22°C (71.6°F), the sea remains warm, making it perfect for a late-summer dip. Weather in September »

Weather in October

October brings the full onset of autumn in Aomori. The weather is cooler, and there is a distinct crispness in the air indicating that winter is approaching. Despite the lowering temperatures, reaching highs of up to 16°C (60.8°F), the city continues to be bathed in plentiful sunshine. Weather in October »

Weather in November

November in Aomori poses a stark contrast where fall gently capsizes into winter territory. The month begins with the remnants of the fall foliage but quickly sees the first snow of the season. The average high temperatures drop to 10°C (50°F), a precursor to the inevitable winter chill. Weather in November »

Weather in December

December marks the full onset of winter in Aomori with an average high temperature of just 3°C (37.4°F). The snowy season begins in earnest, and the city transforms into a wintry landscape straight out of a postcard. Aomori, already renowned for its beautiful landscapes, gains an additional charm under a blanket of snow. Weather in December »