Hachinohe Climate & Monthly Temperature Overview – Japan

Average Weather Year-Round

Hachinohe experiences a humid subtropical climate with distinct seasons. Winters are cold and snowy, with average temperatures ranging from 0.5°C to 6°C in January. Snowfall is common, averaging around 100 inches annually. Springs are mild, with average temperatures climbing to 10-18°C in April. The rainy season typically begins in May and lasts through July, bringing abundant rainfall and high humidity.

Summer and Autumn Conditions

Summers in Hachinohe are warm and humid, with average temperatures reaching 25-30°C in August. Typhoons are a frequent occurrence during this season, often bringing heavy rain and strong winds. Autumns are generally mild, with average temperatures ranging from 15-23°C in October. The foliage changes to vibrant shades of red, orange, and yellow, creating stunning natural landscapes.

Average Temperature in Hachinohe, Japan

Hachinohe, located in northern Japan, experiences a humid continental climate with four distinct seasons. The average temperature throughout the year is around 11.5 degrees Celsius (52.7 degrees Fahrenheit). However, the temperatures vary significantly between seasons, making it important to pack accordingly when visiting.

During the summer months, from June to August, the average temperature in Hachinohe can reach up to 25 degrees Celsius (77 degrees Fahrenheit) during the day. However, the humidity can be high, making the temperatures feel even hotter. It is important to stay hydrated and seek shade during the afternoon hours to avoid heatstroke. The nights are generally milder, with temperatures dropping to around 20 degrees Celsius (68 degrees Fahrenheit).

In the winter, from December to February, the average temperature in Hachinohe plummets to around 0 degrees Celsius (32 degrees Fahrenheit). The city experiences frequent snowfall, and the wind chill can make it feel even colder. It is important to dress warmly in layers and wear appropriate footwear to prevent hypothermia and frostbite. The days are typically shorter during this time of year, and the nights can be long and cold.

Cloud Patterns

Cloud patterns in Hachinohe, Japan, vary significantly throughout the year, influenced by the region’s unique climate and geographical location. During the winter months, when cold, dry air from Siberia prevails, the skies are often clear with minimal cloud cover. In contrast, during the summer months, warm, moist air from the Pacific Ocean brings abundant moisture, resulting in high cloudiness and frequent precipitation.

Cloud Types

The most common cloud types observed in Hachinohe include cirrus clouds, cumulus clouds, and stratus clouds. Cirrus clouds, characterized by their thin, wispy appearance, are composed of ice crystals and typically occur at high altitudes. Cumulus clouds, on the other hand, are puffy white clouds that resemble cotton balls and can appear at various levels of the atmosphere. Stratus clouds, which take on a flat, gray appearance, tend to form at low altitudes and often produce drizzle or rain. Other cloud types, such as altostratus, altocumulus, and nimbostratus, are also commonly observed in the Hachinohe region.

Annual Precipitation

Hachinohe, Japan, experiences abundant precipitation throughout the year, with an average annual rainfall of approximately 1,200 millimeters (47 inches). The rainfall is fairly evenly distributed throughout the year, with slightly higher precipitation during the summer months due to the influence of the Asian monsoon. However, Hachinohe is also susceptible to occasional heavy rainfall events, particularly during the typhoon season from July to October. These events can lead to localized flooding and disruptions to daily life.

Seasonal Precipitation

The precipitation pattern in Hachinohe is influenced by the region’s location along the Pacific Ocean and the presence of surrounding mountains. During the winter months, the prevailing westerly winds bring moisture from the sea, resulting in frequent snowfall. The average snowfall in Hachinohe is approximately 100 centimeters (39 inches), with the highest snowfall occurring in January and February. In contrast, the summer months are characterized by higher temperatures and increased humidity, leading to more frequent rainfall and occasional thunderstorms.

Annual Rainfall

Hachinohe, a city in northern Japan, experiences a temperate climate with four distinct seasons. The annual rainfall in Hachinohe is significant, averaging around 1,200 millimeters (mm) per year. The precipitation is fairly evenly distributed throughout the year, with slightly heavier rainfall during the summer months (June to August). The rainy season, known as tsuyu, typically occurs in late June and early July, bringing periods of persistent rainfall.

Seasonal Variations

The rainfall pattern in Hachinohe varies seasonally. During the spring (March to May), the city typically receives moderate rainfall, averaging around 100-150 mm per month. The summer months (June to August) are the wettest, with monthly rainfall often exceeding 200 mm. This is primarily due to the influence of the warm Kuroshio Current and the prevailing southwesterly winds, which bring moisture from the Pacific Ocean. In the fall (September to November), rainfall decreases slightly, averaging around 150-200 mm per month. The winter months (December to February) are the driest, with monthly rainfall typically below 100 mm. During this time, snow is also common, particularly in the mountainous areas surrounding Hachinohe.

Monthly Snowfall

Hachinohe, a coastal city in northern Japan, experiences moderate snowfall during the winter months. The snowfall is influenced by the city’s location on the eastern coast of the Tsugaru Peninsula, which faces the Sea of Japan. During the months of December, January, and February, Hachinohe typically receives an average of 20-30 cm of snow per month. January is generally the snowiest month, averaging around 30 cm. In contrast, the months of March and April see a significant decrease in snowfall, with an average of less than 5 cm per month.

Impact on Daily Life

The snowfall in Hachinohe can have both positive and negative impacts on daily life. On the one hand, the snow provides opportunities for winter activities such as skiing, snowboarding, and snowshoeing. The city’s proximity to ski resorts like Hachimantai and Iwate Kogen makes it a popular destination for winter sports enthusiasts. Additionally, the snow can create beautiful winter landscapes, adding to the area’s natural beauty. On the other hand, heavy snowfall can also cause disruptions to transportation and other daily activities. Snow removal is a constant challenge, with the city investing significant resources to ensure safe and passable roads. During heavy snowstorms, schools and businesses may be closed or operating on reduced hours, and transportation services may be delayed or cancelled.

Sunrise and Sunset Times

The sunrise and sunset times in Hachinohe, Japan, vary throughout the year. Generally, the sun rises earlier and sets later in the summer months compared to the winter months. During the summer solstice, around June 21st, sunrise occurs around 4:30 AM and sunset around 7:30 PM, providing approximately 15 hours of daylight. Conversely, during the winter solstice, around December 21st, sunrise occurs around 7:00 AM and sunset around 4:30 PM, resulting in only around 9 hours of daylight.

Daylight Hours

Hachinohe experiences an average of around 2,629 hours of sunshine per year. This is comparable to other cities in Japan, such as Tokyo and Osaka. The monthly average of sunshine hours is highest in August, with around 200 hours, and lowest in December, with around 100 hours. Hachinohe’s climate is characterized by a mix of sunny and cloudy days throughout the year. The greatest concentration of sunshine hours occurs during the summer months, from June to August, while the least sunshine is experienced during the winter months, from December to February.

Current Moon Phase

As of today, April 22, 2023, the moon in Hachinohe, Japan, is in the Waxing Gibbous phase. This means that the illuminated portion of the moon is more than half, but not yet full. It will reach its peak illumination on April 26th, when it enters the Full Moon phase.

Moonrise and Moonset Times

The moon in Hachinohe currently rises at approximately 4:30 PM and sets at 6:00 AM. These times may vary slightly depending on your exact location within the city. The moon will remain visible in the sky for approximately 13 hours and 30 minutes.

Annual Humidity Patterns

Hachinohe, a coastal city in Aomori Prefecture, Japan, experiences a humid subtropical climate. Annual humidity levels fluctuate significantly throughout the year. During the summer months (June to August), the city witnesses its highest humidity levels, often exceeding 80%. The warm and humid conditions are attributed to the influence of the Kuroshio Current, which brings warm, moist air from the south. In contrast, the winter months (December to February) bring the lowest humidity levels, typically dropping below 55%. The cold, dry air masses from Siberia dominate the weather patterns during this period.

Seasonal Variations

The humidity levels in Hachinohe exhibit distinct seasonal variations. In spring (March to May), humidity gradually increases as temperatures rise. The average relative humidity during this season ranges from 60 to 70%. During summer, humidity peaks, with average levels hovering around 85%. The high humidity levels create a muggy and uncomfortable atmosphere. In autumn (September to November), humidity levels decline as temperatures cool. The average relative humidity during autumn typically ranges from 70 to 80%. As winter sets in, humidity levels fall sharply, reaching their lowest point in December and January. The cold, dry air prevents much moisture from accumulating in the atmosphere, resulting in average humidity levels below 55%.

Wind Direction and Speed

The wind in Hachinohe, Japan, is predominantly driven by the seasonal monsoon winds that affect the region. During the winter months, strong northwesterly winds associated with the Siberian High pressure system dominate, bringing cold and dry air to the area. These winds can reach speeds of up to 10 meters per second (22 miles per hour) and can generate frequent gusts.

In contrast, during the summer months, the prevailing winds shift to the southeast as part of the Pacific High pressure system. These winds carry warm and humid air from the ocean, bringing increased precipitation and occasional thunderstorms. Wind speeds during this period typically range between 5-8 meters per second (11-18 miles per hour).

Wind Patterns and Impacts

The wind in Hachinohe also exhibits diurnal and seasonal variations. During the day, the sea breeze effect often creates a light onshore flow, while at night, the land breeze generates an offshore wind. These local wind patterns can influence the temperature and humidity of the area, especially during the summer months.

The strong winds in Hachinohe can have significant impacts on various aspects of life. They can cause power outages, property damage, and disruption to transportation, particularly during winter storms. The winds also contribute to the region’s relatively high rates of wind erosion, which can affect soil quality and agricultural productivity. However, the winds can also provide benefits, such as enhancing ventilation and dispersion of air pollution.

Spring (April-May)

Hachinohe welcomes spring with vibrant cherry blossoms that bloom in abundance throughout the city. This season is ideal for nature enthusiasts seeking stunning floral displays, particularly at the picturesque Senrihama Beach. The mild temperatures and pleasant weather make outdoor activities such as hiking and cycling a joy, allowing visitors to soak in the natural beauty of Hachinohe. Moreover, the Hachinohe Port Festival, held in early May, adds to the springtime charm, showcasing the local fishing industry and offering a rich cultural experience.

Autumn (October-November)

Autumn transforms Hachinohe into a canvas of vibrant hues as the foliage turns into a mesmerizing spectacle. The Okawachiyama Prefectural Natural Park, with its verdant hills and sprawling forests, is a must-visit destination during this season. Maple trees explode into shades of crimson, gold, and amber, creating a picturesque landscape. Autumn also brings cooler temperatures, perfect for leisurely walks along the scenic coastline or exploring the historic sites of Hachinohe. The Hachinohe Castle Festival, held in late October, commemorates the city’s feudal past and offers an immersive cultural experience.

Solar Energy Potential

Hachinohe, Aomori Prefecture, Japan, boasts a favorable solar energy potential due to its abundant natural resources. The region receives an average of 1,300-1,500 kilowatt-hours (kWh) of solar radiation per square meter annually, which is higher than the national average. This significant solar irradiation makes Hachinohe an ideal location for harnessing this renewable energy source. The city’s flat terrain and open spaces also provide ample land area for the establishment of solar photovoltaic (PV) systems.

Development and Adoption

Recognizing the potential for solar energy, Hachinohe has actively pursued its development and adoption. In 2011, the city launched a pioneering project that involved the installation of 3,000 solar panels on the roofs of municipal buildings, generating approximately 690,000 kWh of electricity per year. Several private companies and local residents have also adopted solar PV systems, contributing to the city’s overall renewable energy mix. As of 2020, Hachinohe had a total installed solar PV capacity of over 17 megawatts (MW), providing a significant portion of its electricity consumption.

Topography of Northern Hachinohe

Northern Hachinohe is characterized by its mountainous terrain. The Hakkōda Mountains, located in the south, form a natural border between Hachinohe and Aomori Prefecture. The most prominent peaks in this range include Mount Iwaki (1,625 meters) and Mount Akita-Komagatake (1,637 meters). These mountains are popular destinations for hiking and mountaineering, offering panoramic views of the surrounding landscape.

Topography of Southern Hachinohe

Southern Hachinohe is a coastal region with a flat, low-lying topography. The coastline stretches for approximately 50 kilometers, and the area is known for its beautiful beaches and scenic views of the Pacific Ocean. The Tsugaru Strait separates Hachinohe from Hokkaido to the north, and the city is connected to the island by the Seikan Tunnel, which opened in 1988 and is the world’s longest undersea tunnel.

Hachinohe Airport (HHE) is the closest airport to Hachinohe, Japan. It is located approximately 10 kilometers (6 miles) from the city center and is served by several domestic airlines. The airport has one runway and a single terminal building. It offers flights to major cities in Japan, including Tokyo, Osaka, and Nagoya. HHE is a convenient option for travelers who want to avoid the longer journey to Misawa Air Base (MSJ), which is located approximately 40 kilometers (25 miles) from Hachinohe.

Misawa Air Base (MSJ) is a United States Air Force base that is also open to civilian air traffic. It is located approximately 40 kilometers (25 miles) from Hachinohe and is served by both domestic and international airlines. MSJ has two runways and a single terminal building. It offers flights to major cities in Japan, as well as to Guam and Hawaii. While MSJ is further from Hachinohe than HHE, it may offer more flight options and lower fares. Travelers should consider their specific needs and preferences when choosing which airport to use.

History and Culture of Hachinohe

Hachinohe, located in the northeastern region of Japan, has a rich historical and cultural heritage. It was once a prosperous port town during the Edo period (1603-1868) and became an important industrial center in the Meiji era (1868-1912). The city is home to several historical landmarks, including the Hachinohe Castle Museum, which displays exhibits on the history of the area, and the Yachi Shrine, known for its unique architecture and festivals. Hachinohe also boasts a thriving arts and culture scene, with renowned festivals such as the Sansha Taisai, which features traditional music and dance, and the Enburi Festival, showcasing the region’s folk dance heritage.

Industry and Economy of Hachinohe

Hachinohe is a major industrial and economic hub in northern Japan. The city is home to a diverse range of industries, including steel manufacturing, petrochemicals, and paper production. It is also a significant transportation center, with the Hachinohe Line of the Tohoku Main Line railway and Hachinohe Airport providing easy access to major cities. In recent years, Hachinohe has experienced significant economic growth, particularly in the areas of biotechnology and renewable energy. The city is home to several research institutions and development centers, making it a hub for innovation and technological advancement.