Morioka Climate & Monthly Temperature Overview – Japan

Summer in Morioka

Summer in Morioka is generally warm and humid, with average temperatures ranging from 20 to 29 degrees Celsius (68 to 84 degrees Fahrenheit). The warmest months are July and August, with average temperatures peaking at around 29 degrees Celsius (84 degrees Fahrenheit). Precipitation is also common during the summer, with an average of 13 to 16 rainy days per month. The most significant rainfall occurs in July, with an average of 16 rainy days.

Winter in Morioka

In contrast to the warm summers, winters in Morioka are cold and snowy, with average temperatures ranging from -3 to 5 degrees Celsius (27 to 41 degrees Fahrenheit). The coldest months are January and February, with average temperatures dipping below freezing at around -3 degrees Celsius (27 degrees Fahrenheit). Snowfall is also common during winter, with an average of 12 to 16 snowy days per month. The heaviest snowfall occurs in February, with an average of 16 snowy days.

Summer and Winter Temperatures
Morioka, Japan experiences distinct seasonal variations in temperature. The summer months from June to August are characterized by warm and humid weather, with average temperatures ranging from 21°C (70°F) to 27°C (81°F). The average high temperature in July, the warmest month, is 28°C (82°F). In contrast, the winter months from December to February are cold and dry, with average temperatures dropping below freezing. The coldest month is January, with an average low temperature of -5°C (23°F).

Spring and Autumn Temperatures
During the spring and autumn months, the weather in Morioka transitions gradually between the extreme temperatures of summer and winter. In March and April, temperatures rise from an average low of 1°C (34°F) to 9°C (48°F), and the snowfall of winter gradually melts away. The average high temperature in May, the warmest spring month, is 19°C (66°F). In September and October, temperatures gradually decrease from an average high of 21°C (70°F) to 12°C (54°F), and the foliage begins to turn brilliant shades of red and orange. By November, temperatures have dropped below freezing again, and snow begins to fall.

Types of Clouds in Morioka

Morioka, Japan, experiences a variety of cloud formations throughout the year. Common cloud types include cirrus clouds, which are thin, wispy, and often appear at high altitudes. Cumulus clouds are characterized by their white, puffy appearance, while stratus clouds form a uniform, gray blanket covering the sky. During thunderstorms, cumulonimbus clouds tower vertically and can produce lightning, thunder, and heavy rain. Other cloud types such as altocumulus, cirrocumulus, and stratocumulus may also be observed in Morioka’s sky.

Influence on Local Weather

Clouds play a significant role in shaping Morioka’s local weather conditions. High, thin clouds like cirrus clouds allow sunlight to pass through, leading to clear and sunny days. Cumulus clouds, on the other hand, can bring brief showers or drizzle. Stratus clouds often indicate overcast conditions with prolonged periods of light to moderate precipitation. Cumulonimbus clouds are associated with thunderstorms, bringing heavy rain, hail, and occasionally strong winds. The presence and type of clouds in Morioka provide valuable information for predicting upcoming weather patterns and conditions.

Annual Precipitation

Morioka, Japan, experiences significant precipitation throughout the year, with an annual average of approximately 1,100 millimeters (43 inches). This precipitation is distributed relatively evenly across all four seasons, although the summer months tend to be slightly wetter than the winter months. The wettest month is typically September, when the city receives an average of 135 millimeters (5.3 inches) of rain. The driest month is usually December, with an average precipitation of 45 millimeters (1.8 inches).

Seasonal Precipitation Patterns

The precipitation patterns in Morioka are influenced by the city’s location on the Sea of Japan. During the summer months, warm, moist air from the ocean flows into the region, bringing with it frequent rainfall. The average temperature in August, the warmest month, is 24 degrees Celsius (75 degrees Fahrenheit), and the city receives an average of 120 millimeters (4.7 inches) of rain. In the winter, cold, dry air from Siberia dominates the weather, leading to drier conditions. The average temperature in January, the coldest month, is -4 degrees Celsius (25 degrees Fahrenheit), and the city receives an average of 40 millimeters (1.6 inches) of snow.

Rainfall Patterns

Morioka, Japan, experiences distinct seasonal rainfall patterns. Winter months (December to February) are relatively dry, with an average monthly rainfall of around 40 millimeters (1.6 inches). As spring arrives (March to May), precipitation gradually increases, with April being the wettest month, averaging 70 millimeters (2.8 inches) of rainfall.

During the summer months (June to August), Morioka receives ample rainfall, with an average of 100 millimeters (4 inches) per month. This precipitation is often associated with the monsoon season, which brings heavy downpours and thunderstorms. In contrast, autumn (September to November) experiences a gradual decrease in rainfall, with an average of 60 millimeters (2.4 inches) per month.

Seasonal Variability

The amount of rainfall in Morioka can vary significantly from year to year. During dry years, annual rainfall may drop below 1,000 millimeters (40 inches), while in wet years, it can exceed 1,200 millimeters (48 inches). This variability is influenced by a combination of factors, including global climate patterns, such as El Niño and La Niña.

Summer rainfall is particularly prone to variability, with some years experiencing intense rainfall and flooding, while others are relatively dry. The heavy monsoon rains can sometimes lead to waterlogging and landslides, particularly in mountainous areas. The timing and intensity of these rainfall events can impact agricultural productivity, water resources, and infrastructure in the region.

Snowfall Patterns

Morioka, Japan experiences significant snowfall during the winter months. The city is located in the northern part of Japan, in the Tohoku region, which is known for its heavy snowfall. The average annual snowfall in Morioka is around 2 meters (6.6 feet). The snow season typically begins in November and lasts until April, with the heaviest snowfall occurring in January and February.

Impact on Daily Life

The heavy snowfall in Morioka can have a significant impact on daily life. The city has a well-developed snow removal system, which includes snowplows and deicing trucks. However, even with these measures, the snow can still cause delays and disruptions. During heavy snowfalls, schools and businesses may be closed, and public transportation may be disrupted. The snow can also make it difficult to walk or drive, and can pose a hazard to pedestrians and motorists.

Sunrise and Sunset Times in Morioka, Japan

Morioka, the capital city of Iwate Prefecture in Japan, experiences varying sunrise and sunset times throughout the year due to the Earth’s tilt and its location in the Northern Hemisphere. During the summer months (June-August), the sun rises as early as 4:30 AM and sets around 7:30 PM, resulting in long days with ample sunlight. Conversely, during the winter months (December-February), the days are shorter, with sunrise occurring around 7:00 AM and sunset around 4:30 PM. The city experiences the longest day of the year on or around June 21, known as the summer solstice, when the sun rises at 4:29 AM and sets at 7:30 PM. The shortest day occurs on or around December 21, the winter solstice, when the sun rises at 7:09 AM and sets at 4:29 PM.

Seasonal Variations in Daylight Hours

The amount of daylight hours in Morioka varies significantly throughout the year. During the summer months, the city enjoys approximately 15 hours of daylight, providing ample time for outdoor activities and exploration. In contrast, during the winter months, daylight hours dwindle to around 8 hours, resulting in shorter days and less sunlight. These seasonal variations in daylight impact the daily lives of the city’s residents, influencing their work and leisure activities. Businesses tend to open and close earlier during the winter months due to the reduced daylight hours, while outdoor activities such as hiking, cycling, and sightseeing are more popular during the summer months when there is more sunlight available.

Moonrise and Moonset Times

In Morioka, Japan, the moonrise and moonset times vary throughout the year due to the Earth’s orbit and the tilt of its axis. During the summer months, the moon rises and sets later, resulting in longer nights and shorter days. Conversely, during the winter months, the moon rises and sets earlier, leading to shorter nights and longer days. The specific moonrise and moonset times for any given day can be obtained from astronomical calendars or online resources.

Moon Phases

The moon goes through phases as it orbits the Earth. The main phases are new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent. In Morioka, the appearance of the moon during each phase can vary based on atmospheric conditions and cloud cover. Clear nights offer the best opportunities to observe the moon’s various phases in their full glory, while cloudy or hazy nights may obscure or diminish its visibility.

Seasonal Variation of Humidity

Morioka, located in the northeastern part of Japan’s Honshu Island, experiences significant seasonal variations in humidity levels. The city’s humid subtropical climate features distinct summer and winter seasons, resulting in fluctuating humidity conditions throughout the year.

During the hot and humid summer months from June to August, humidity levels soar as warm, moisture-laden air from the Pacific Ocean moves inland. On average, relative humidity during these months ranges between 70% and 85%, creating an uncomfortable and muggy atmosphere. In contrast, winter in Morioka brings cold and dry conditions. From December to February, the air becomes much drier due to the influence of cold, continental air masses from Siberia. Humidity levels typically fall to around 40% or lower during this time, making the air crisp and dry, and occasionally leading to the formation of fog or frost.

Diurnal Variation of Humidity

In addition to seasonal changes, humidity levels in Morioka also exhibit a significant diurnal (daily) variation. During the morning hours, humidity tends to be highest, often reaching 80% or more. As the day progresses and the sun heats the air, relative humidity gradually decreases, reaching its lowest point in the late afternoon. By evening, humidity levels start to rise again, approaching their peak by the time the sun goes down. This diurnal variation in humidity is primarily due to the changes in temperature throughout the day, which affect the amount of moisture the air can hold.

Seasonal Patterns

In Morioka, Japan, the prevailing wind direction varies throughout the year due to seasonal changes in weather patterns. During the winter months (December to February), strong northwesterly winds dominate, bringing cold and dry air from Siberia. These winds are responsible for the city’s heavy snowfall and often harsh conditions. In contrast, during the summer months (June to August), southerly winds originating from the Pacific Ocean bring warm and humid air, creating a more temperate climate with occasional rainfall.

Windspeed and Frequency

Morioka experiences relatively calm winds throughout the year, with the average windspeed ranging from 1.0 to 1.5 meters per second (2.2 to 3.4 miles per hour). However, periods of strong wind can occur during winter storms and typhoons. During typhoon season (August to October), easterly winds can gust up to 30 meters per second (67 miles per hour), causing significant damage to infrastructure and disrupting transportation. The city’s wind pattern is influenced by its location in a mountainous region, which can channel winds and create localized wind effects.

Spring (April-May)

Spring in Morioka is a time of renewal and beauty. As the snow melts and the city awakens from its winter slumber, vibrant cherry blossoms burst into bloom, painting the landscape in a delicate shade of pink. The Iwate Park is a popular spot to witness this spectacle, with over 1,000 cherry trees lining its paths. The weather during spring is generally mild and pleasant, with average temperatures ranging from 10-20°C (50-68°F). This makes it an ideal time for outdoor activities such as picnics, cycling, and strolling along the Morioka River.

Summer (June-August)

Summer in Morioka brings with it warm and sunny weather. The city comes alive with a vibrant atmosphere as locals and tourists alike enjoy the long days and balmy evenings. The Nebuta Matsuri, held in the first week of August, is a highlight of the summer season. This spectacular festival features giant illuminated floats paraded through the streets, accompanied by traditional music and dance. While temperatures can reach into the mid-30s (90s°F) during the hottest part of the day, evenings offer a refreshing respite with cool breezes and pleasant temperatures.

Solar Resource

Morioka, Japan, located in the northern part of Honshu Island, has a moderate solar resource. The average annual solar radiation is approximately 4.5 kWh/m2/day, which is lower compared to southern regions of Japan. However, the city still receives ample sunlight during the spring and summer months, making it viable for solar energy generation. The peak solar radiation period occurs from May to September, with the highest values recorded in July.

Solar Energy Installations

Despite the relatively modest solar resource, Morioka has made significant progress in the adoption of solar energy. As of 2023, the city has installed over 100,000 solar panels, representing a total capacity of approximately 30 MW. The majority of these installations are rooftop systems on homes, businesses, and public buildings. Large-scale ground-mounted solar farms are also under development in the surrounding areas. The city government has actively promoted solar energy through incentives and subsidies, encouraging residents and businesses to switch to renewable energy sources.

Hills and Mountains

Morioka is nestled amidst a scenic landscape characterized by rolling hills and towering mountains. The city is located at the confluence of the Kitakami and Nakatsu Rivers, with the Kitakami Mountains rising to the east and the Oshu Mountains to the west. Mount Iwate, an iconic snow-capped peak, dominates the skyline to the north, while Mount Hachimandaira offers panoramic views of the surrounding countryside. The hills around Morioka provide hiking and nature-watching opportunities, while the mountains offer challenges for climbers and skiers.

Rivers and Waterfalls

The Kitakami River, Japan’s third-longest, meanders through Morioka and serves as a vital lifeline for the city. The river supports a diverse ecosystem, providing habitats for otters, salmon, and other aquatic species. Along its course, the Kitakami River creates stunning waterfalls, such as the 20-meter-tall Ryusendo Falls, which cascade through a lush gorge. The Nakatsu River, a tributary of the Kitakami, also flows through Morioka and adds to the city’s scenic charm. Its crystal-clear waters and meandering path make it a popular spot for fishing and boating.

Morioka Airport (HNA): The Gateway to Iwate Province

Morioka Airport, located just 10 kilometers from the heart of Morioka City, is the primary aerial gateway to the Iwate Prefecture in Japan’s northeastern Tohoku region. With a single terminal and one runway, HNA operates primarily domestic flights, connecting Morioka to major cities such as Tokyo, Osaka, Sapporo, and Nagoya. The airport offers a range of amenities, including shops, restaurants, and car rental services.

For travelers seeking a scenic journey to Morioka, the airport provides a breathtaking glimpse of the surrounding mountains and rice paddies. Its close proximity to the city center makes it highly accessible for passengers, with bus and taxi services easily connecting travelers to their desired destinations. Additionally, the HANA Bus Terminal, situated just outside the airport, offers convenient and affordable bus connections to destinations within Iwate Prefecture and beyond.

History and Culture:

Morioka, the capital city of Iwate Prefecture, is a historic city with a rich cultural heritage. The city was founded in 1597 by feudal lord Nanbu Nobunao as the administrative center of the Nambu clan. Throughout its history, Morioka has played a significant role in the development of the Tohoku region, serving as a hub for trade and commerce. Today, Morioka is a modern city that retains many of its historical landmarks and traditions. One of the most notable attractions is Morioka Castle, which was constructed in the early 17th century and is surrounded by a beautiful moat and gardens. Other important cultural sites include the Iwate Prefectural Museum, which houses a collection of artifacts from the region, and the Morioka Handi-Craft Village, where visitors can experience traditional crafts such as pottery, weaving, and lacquerware.

Nature and Recreation:

Morioka is surrounded by stunning natural beauty, with mountains, rivers, and lakes within easy reach. The Iwate Mountains, which rise to the west of the city, offer opportunities for hiking, climbing, and skiing. The Kitakami River, which flows through the center of Morioka, provides scenic views and is popular for fishing and rafting. Lake Gosho, located about 30 kilometers south of Morioka, is known for its beautiful cherry blossoms in the spring and its vibrant autumn foliage. The city also has several parks and gardens, including Morioka Park, which features a large pond and a traditional Japanese garden.