Weather in Aomori

Planning your visit to Aomori or already enjoying your stay? In this section, you will find the most up-to-date weather information, including detailed forecasts and useful data to make your trip as comfortable as possible.

The climate in Aomori, located in Japan, is characterised as temperate with four distinct seasons. The city experiences significant temperature fluctuations throughout the year, allowing tourists to enjoy a variety of weather conditions depending on the time of their visit.

Winters in Aomori are cold, with average temperatures in January and February around -1°C, often dropping below freezing, and a high number of precipitation days (23-25 days in December-January), indicating heavy snowfall. Spring brings gradual warming, and by May, the average temperature reaches a comfortable 14.3°C. Summer, especially July and August, is warm, with average temperatures around 23-24°C, and is also characterised by a significant number of precipitation days (17-18 days), suggesting the possibility of frequent, though not necessarily heavy, rains. In autumn, temperatures gradually decrease, creating pleasant conditions for walking.

One of the key features of the weather in Aomori is the high number of precipitation days throughout the year, although the monthly rainfall in millimetres is not extremely high. This means that visitors should be prepared for frequent weather changes and carry appropriate clothing, especially during the winter months when snow prevails, and in summer when rains are possible.

The climate in Aomori is characterised by distinct seasons and a significant annual temperature range. The coldest months are January and February. In January, the average temperature is around -1.6°C, with nightly lows potentially dropping to -3.6°C, and daily highs rarely exceeding 0.5°C. February also remains frosty with an average temperature of -1.0°C. The hottest month is August, when the average temperature reaches 23.9°C. In August, daytime temperatures usually hover around 26.9°C, while night temperatures drop to a comfortable 21.0°C. July is also notable for warm weather with an average temperature of 22.8°C.

Summer months in Aomori, especially July and August, offer warm and pleasant weather. Daytime temperatures in August can reach almost 27°C, creating comfortable conditions for exploring the city and its surroundings, although it is worth noting that this period also sees the highest amount of precipitation. Winter, on the other hand, brings real cold. From December to February, air temperatures often stay below freezing. In January, the coldest month, the average minimum temperature is about -3.6°C, and the average maximum barely reaches 0.5°C. This time is characterised by frosty weather, suitable for winter activities if available in the region.

Spring and autumn in Aomori are transitional seasons with gradual temperature changes. Spring, from March to May, sees steady warming: from an average of 3.5°C in March to 14.3°C in May. In autumn, starting from September, when the average temperature is a comfortable 20.1°C, a gradual cooling occurs down to 7.1°C in November. Daily temperature fluctuations in Aomori, judging by the difference between average maximum and minimum values, are moderate and usually range from 4°C to 8°C throughout the year, meaning there are no sharp contrasts between day and night temperatures.

In Aomori, precipitation is a characteristic feature of the weather throughout the year, although its intensity and type vary noticeably depending on the season. There is no distinct dry season here, as even in months with the minimum number of precipitation days, there are at least 12.

The winter period, covering the months from December to February, is distinguished by the highest frequency of precipitation. December leads with 25 wet days, followed by January with 23 days. Given that average temperatures in these months drop below freezing (e.g., -1.6°C in January and 0.0°C in December), precipitation here falls predominantly as snow. Interestingly, despite the high frequency, the total monthly precipitation amount during this period is low (3-4 mm), which may indicate frequent but light to moderate snowfalls.

Summer months, particularly July and August, bring the highest amount of precipitation in the form of rain. August is the wettest month of the year with a total precipitation volume of 7 mm and 18 rainy days. Significant precipitation is also observed in July (5 mm) and 17 rainy days. Spring and autumn months are transitional. The lowest number of days with precipitation falls on April and September – 12 days each, making them relatively drier periods of the year in terms of precipitation frequency, although it is regular even in these months.

When packing for a trip to Aomori, it is important to consider its distinct change of seasons and frequent precipitation. Regardless of the time of year, comfortable walking shoes will be your main ally, as the city and its picturesque surroundings invite you to explore them on foot. Since Aomori has between 12 and 25 days with precipitation in almost every month, do not forget to put an umbrella or a light waterproof jacket in your luggage. Winters here (December to February) are cold: the average temperature ranges from -1.6°C to 0°C, and precipitation often falls as snow, especially in December and January, when the number of wet days can reach 23-25. Therefore, for a winter trip, you will need maximum warm clothing: thermal underwear, a well-insulated jacket, a hat, gloves, a scarf, and waterproof warm shoes.

Spring (March-May) and autumn (September-November) months in Aomori are characterised by changeable weather. Air temperatures rise gradually in spring, from a cool +3-6°C in March to a pleasant +18°C by May (referring to daily highs), and in autumn smoothly decrease from warm September marks around +20-23°C to +7-10°C in November. During these periods, when precipitation is also not uncommon (averaging 12-17 rainy days per month), the layering principle is ideal: T-shirts, long-sleeved shirts, sweaters, and a medium-weight jacket will help you easily adapt to the whims of the weather. Summer (June-August) in Aomori is warm, with average temperatures ranging from +18°C to +24°C. However, this is also the wettest season, especially July and August, when the number of rainy days reaches 17-18. Therefore, pack light, breathable clothing, but be sure to provide protection against rain. On sunny summer days, sunscreen and a hat will not be superfluous. Careful preparation for various weather conditions will make your trip to Aomori as pleasant and comfortable as possible.