Oita Climate & Monthly Temperature Overview – Japan

Spring and Autumn

Spring in Oita begins in March and lasts until May. During this season, the weather is mild and pleasant, with average temperatures ranging from 10°C to 24°C. The days are mostly sunny, making it an ideal time to explore the nearby mountains and forests or enjoy the cherry blossoms. Autumn, which runs from September to November, is also a pleasant time of year in Oita. The weather is similar to spring, but the humidity is often lower, resulting in crisp and comfortable conditions.

Summer

Summer in Oita lasts from June to August and can be hot and humid. Average temperatures range from 25°C to 30°C, with occasional heat waves that can push the mercury above 35°C. The humidity can make the heat feel even more intense, so it’s important to stay hydrated and take precautions against heatstroke. However, the long summer days provide plenty of time to enjoy the many beaches and other outdoor attractions in the area.

Average Temperature by Month

Oita, Japan experiences a humid subtropical climate with distinct seasonal variations in temperature. The average temperature throughout the year ranges from 39.2°F in January to 83.3°F in August. Spring (March-May) brings pleasant temperatures, averaging around 55-70°F, while autumn (September-November) offers mild conditions, ranging from 45-65°F. Winters are relatively mild, with average temperatures hovering between 30-50°F. However, due to the high humidity, temperatures can feel colder than indicated.

Comparison to Nearby Cities

Compared to other cities in Japan, Oita’s average temperature is slightly warmer in winter and cooler in summer. For instance, Tokyo has average winter temperatures around 42.8°F and summer temperatures around 84.2°F, indicating a somewhat colder winter and hotter summer in Tokyo. Fukuoka, another nearby city, has average winter temperatures of 41°F and summer temperatures of 82.4°F, suggesting that Oita’s winters are slightly warmer and summers slightly cooler.

Cloud Types Observed in Oita, Japan

Oita Prefecture in Japan is renowned for its diverse cloud formations, which provide a stunning spectacle in the sky. One of the most common cloud types observed in the region is cirrocumulus, characterized by small, white, and puffy clouds that appear like cotton balls. These clouds typically form at high altitudes and are composed of ice crystals rather than water droplets.

Another prevalent cloud type in Oita is altocumulus, which manifests as gray or white masses of clouds resembling fluffy cotton. Altocumulus clouds are typically found at middle altitudes and often indicate the presence of unstable atmospheric conditions. Additionally, Oita also experiences cumulonimbus clouds, towering clouds that reach high altitudes and can produce rain, thunderstorms, and even hail. These clouds are distinct by their anvil-shaped tops and are often associated with active weather systems.

Seasonal Distribution of Precipitation

Oita, Japan, experiences a significant amount of precipitation throughout the year, with the bulk of it occurring during the rainy season from late May to early July. During this period, the city is subjected to frequent heavy rainfall and thunderstorms associated with the northward movement of the Meiyu-bai front, a low-pressure system that brings moisture from the south. Summer and autumn also receive substantial rainfall, particularly during the typhoon season that peaks in September. In contrast, winter sees the least amount of precipitation, with clear and dry conditions prevailing from December to February.

Monthly Precipitation Variability

The wettest month in Oita is June, with an average rainfall of around 250 mm (10 inches). August and September follow closely, both receiving over 200 mm (8 inches) of precipitation. During the dry season from December to February, the average monthly rainfall drops to below 50 mm (2 inches), with January being the driest month. The annual rainfall in Oita is approximately 1,500 mm (60 inches), which is relatively high compared to other cities in Japan. The variability in monthly precipitation reflects the influence of the seasonal weather systems, with heavy rainfall during the rainy and typhoon seasons and drier conditions during winter.

Precipitation Patterns
Oita, Japan, experiences a humid subtropical climate with distinct wet and dry seasons. Annual precipitation averages around 1,600 millimeters (63 inches), with the majority falling during the summer months from June to September. During this period, the city is influenced by the East Asian monsoon, which brings warm, moisture-laden air from the Pacific Ocean. The wettest month is July, with an average rainfall of over 300 millimeters (12 inches).

Seasonal Variations
The winter months, from December to February, are relatively dry, with precipitation averaging around 50-100 millimeters (2-4 inches) per month. During this period, Oita is influenced by the Siberian high-pressure system, which brings cold, dry air from the north. March and April witness a gradual increase in precipitation as the monsoon approaches, while May and June mark the transition to the wet season, with frequent showers and thunderstorms. October and November experience a slight decrease in rainfall before the onset of the dry season in December.

Snowfall in Oita, Japan

Oita, a prefecture located in Kyushu, Japan, experiences varying snowfall patterns depending on elevation and proximity to the coast. The coastal areas tend to have milder winters, while inland areas at higher altitudes receive significant snowfall during the winter months. Oita City, the prefectural capital, typically receives around 10 inches of snow per year, while mountainous regions such as Mount Sobo can accumulate over 100 inches.

Snowfall in Oita primarily occurs during the months of December to February. January is usually the snowiest month, with an average of 3-6 inches of snow. The snow often falls as a light dusting or in intermittent flurries, but occasional heavy snowfalls can also occur. During periods of heavy snowfall, transportation can be affected, and roads may become impassible. However, snowfall in Oita is generally manageable, and the region is well-equipped to handle winter weather conditions. Snow removal and de-icing measures are implemented to ensure public safety and minimize disruptions caused by snow.

Weather Conditions:

The Sun in Oita, Japan, typically shines brightly throughout the year, with an average of 2,174 hours of sunshine annually. During the summer months (June to August), temperatures can reach up to 35 degrees Celsius (95 degrees Fahrenheit), making the sun’s rays especially intense and providing ample opportunities for outdoor activities and enjoying the city’s scenic coastline. However, in the winter months (December to February), temperatures drop significantly, and the sun’s presence becomes less noticeable with fewer daylight hours.

Sunrise and Sunset Times:

The sunrise and sunset times in Oita vary depending on the time of year due to the Earth’s tilt and rotation. During the summer months, the sun rises around 5:30 am and sets around 7:30 pm, providing longer daylight hours for residents and tourists. In the winter months, the sun rises around 7:00 am and sets around 5:30 pm, resulting in shorter daylight hours. The city’s location on the eastern coast of Kyushu Island means that it experiences stunning sunrises over the Pacific Ocean, offering picturesque views and a chance to capture breathtaking photographs.

Moon in Oita, Japan

The moon holds great significance in Japanese culture, and Oita Prefecture is no exception. The prefecture is home to several famous moon-viewing spots, offering breathtaking views of the celestial body as it rises over the horizon or reflects on the tranquil waters. One of the most popular destinations is Mount Futagoyama, which provides a panoramic view of the city and surrounding mountains. Visitors can hike to the summit to witness the moon’s ascent or set up a picnic blanket to enjoy the spectacle from below.

Other moon-viewing spots in Oita include Usa Shrine, known for its ancient history and spiritual significance, and Beppu Onsen, the renowned hot spring resort. The shrine’s courtyard offers a serene setting for moonlit meditation, while the hot springs provide a relaxing and rejuvenating way to soak in the moonlight’s glow. During the autumn months, Oita also hosts the Tsukimi (Moon Viewing) Festival, a traditional celebration where people gather to admire the full moon and offer up prayers for good fortune. The festival features moon-themed decorations, traditional performances, and stalls selling moon-related souvenirs and delicacies.

Seasonal Trends

Oita, Japan experiences a humid subtropical climate, characterized by hot, humid summers and mild, relatively dry winters. Humidity levels vary significantly throughout the year, influenced by seasonal changes in temperature and precipitation. During the summer months (June to September), humidity levels reach their peak, with average relative humidity values hovering around 80% or higher. This is primarily due to the influx of warm, moist air from the Pacific Ocean, coupled with high temperatures that promote evaporation and increase water vapor in the atmosphere. In contrast, winter months (December to February) are generally drier, with humidity levels dropping to around 60-70% on average. This is because colder temperatures slow down evaporation and reduce the amount of moisture in the air.

Diurnal Variations

Humidity levels in Oita also exhibit diurnal variations, with fluctuations occurring throughout the day. Typically, humidity levels are highest in the early morning hours, when temperatures are relatively cool and dew formation occurs. As the day progresses and temperatures rise, humidity levels tend to decrease gradually. This is because warmer air can hold more water vapor, leading to a decrease in relative humidity. However, during the summer months, humidity levels may remain elevated throughout the day due to the continuous evaporation from the ocean and the presence of moist air masses. In contrast, during the winter months, humidity levels may drop significantly during the afternoon as temperatures rise and the air becomes drier.

Seasonal Wind Patterns

Oita, Japan, experiences distinct seasonal wind patterns. During the winter months, strong northerly winds known as the “northwest wind” frequently blow across the region. These winds are cold and dry and can bring significant snowfall to the mountainous areas. In contrast, the summer season is characterized by warm and humid southeasterly winds known as the “southeast wind.” These winds carry moist air from the Pacific Ocean, resulting in increased humidity and occasional heavy rainfall.

Influence on Local Climate

The prevailing wind patterns in Oita have a significant impact on the local climate. The strong winter winds contribute to the relatively cool and dry climate during this season. They also help to create unique weather phenomena such as “Hakusan snowdrifts,” where snow accumulates to form massive drifts along the slopes of Mount Hakusan. On the other hand, the southeasterly winds in summer bring warm, humid conditions that can lead to uncomfortable heat and humidity levels. Additionally, these winds can sometimes bring heavy rain and thunderstorms to the region.

Spring (March-May)

Spring in Oita is a season of vibrant beauty, with the prefecture’s many cherry trees bursting into bloom. The iconic Ureshino Onsen, known for its skin-rejuvenating waters, becomes particularly enchanting during this time. Strolling through the picturesque park surrounding the hot springs, visitors can admire the delicate pink petals floating down upon the tranquil waters. Additionally, the Mount Daisen Hiking Trail offers breathtaking views of the mist-shrouded mountains and surrounding countryside.

Summer (June-August)

Summer in Oita provides an array of water-based activities and cultural festivals. The coastal city of Beppu transforms into a lively hub, with its numerous hot springs attracting visitors from around the globe. Adventure enthusiasts can embark on exciting rafting expeditions down the Ōboke Gorge, surrounded by towering cliffs and cascading waterfalls. Moreover, the Beppu Festival, held annually in July, showcases traditional Japanese dance and music, adding to the vibrant atmosphere of this seaside destination.

Solar Energy in Oita, Japan: Background and Potential

Oita Prefecture in southern Japan is renowned for its abundant sunshine, making it an ideal location for solar energy development. The prefecture has been actively promoting solar power since the early 2000s and has emerged as a leader in the field. Oita’s favorable climate, coupled with government incentives and supportive policies, has attracted significant investment in solar energy projects.

Solar Energy Installations and Development

To date, Oita Prefecture boasts over 1 gigawatt of installed solar energy capacity, making it one of the top solar power producers in Japan. Numerous large-scale solar farms have been established across the prefecture, including the 70 MW Beppu Solar Power Plant and the 50 MW Usuki Solar Power Plant. These facilities utilize advanced photovoltaic technology to convert sunlight into electricity, contributing to Oita’s renewable energy goals. In addition to utility-scale installations, residential and commercial rooftop solar systems are also widely adopted, further expanding the prefecture’s solar energy footprint.

Ongoing Initiatives and Future Outlook

Oita Prefecture remains committed to advancing solar energy development. The prefecture has set an ambitious target of achieving 100% renewable energy by 2050, with solar power playing a central role. Ongoing initiatives include the establishment of new solar power plants, research and development of innovative solar technologies, and the promotion of self-consumption of solar energy. The prefecture is also working to foster a skilled workforce in the solar industry and to raise public awareness about the benefits of solar energy. Oita’s continued pursuit of solar energy is expected to drive further economic growth and environmental sustainability for the region.

Mountains in Oita, Japan

Oita Prefecture in Japan is blessed with a diverse topography, including numerous mountains that add to its scenic beauty. Mount Sobo, the highest peak in Oita, dominates the skyline at 1,756 meters. With its rugged slopes and challenging trails, it is a favorite destination for hikers and nature enthusiasts. Other notable peaks include Mount Kuju, known for its volcanic caldera and stunning views, and Mount Yufu, an iconic landmark with its twin peaks and surrounding hot springs. The prefecture’s mountainous terrain also gives rise to several impressive waterfalls, including Nabegataki Falls and Shindo Falls, which attract visitors with their cascading waters and picturesque surroundings.

Coastal Features and Islands in Oita, Japan

The coastline of Oita Prefecture stretches for approximately 580 kilometers, offering a variety of coastal features and islands. The Beppu Bay area is renowned for its scenic hot springs and volcanic landscapes, particularly around the city of Beppu, which is home to numerous hot spring resorts. The coast of Kunisaki Peninsula features rugged cliffs, secluded coves, and sandy beaches, making it a popular spot for swimming, fishing, and boating. Moreover, Oita is home to several islands, the most prominent being Ōsumi Island, located in Beppu Bay. This island boasts a rich history and cultural heritage, with ancient shrines, temples, and traditional villages. Additionally, the prefecture’s coastline is dotted with smaller islands, such as Ushima Island, which is known for its unique “rabbit ears” rock formations.

Oita Airport (OIT)

Oita Airport (OIT) is the closest airport to Oita City, Japan’s capital and largest city on the Kyushu island. The airport is situated approximately 10 kilometers from the city center and offers domestic and international flights. Airlines serving OIT include Japan Airlines, All Nippon Airways, Solaseed Air, and Peach Aviation. The airport features a single runway and a small terminal building with basic amenities such as check-in counters, baggage claim areas, and a few shops and restaurants. OIT is a convenient option for travelers seeking to explore Oita and the surrounding region.

Other Airports in the Oita Prefecture

Although Oita Airport is the closest to Oita City, there are several other airports within the Oita Prefecture that may be more convenient depending on the destination and travel plans. Kunisaki Airport (KUN), located approximately 40 kilometers from Oita City, primarily serves the Kunisaki Peninsula region. It is a smaller airport with limited flight options compared to OIT. Fukuoka Airport (FUK), situated approximately 100 kilometers from Oita City, is the largest airport in Kyushu and offers a wider range of domestic and international flights. While FUK is further away from Oita than the other airports mentioned, it may provide more convenient connections for travelers with complex itineraries or those seeking to explore other parts of Kyushu and Japan.

History and Culture in Oita, Japan

Oita, situated on Kyushu Island’s eastern coast, boasts a rich history dating back to the Edo period. The city’s vibrant culture is reflected in its numerous museums, festivals, and historical sites. Notable landmarks include the Oita Castle, the Umi-Tamago Aquarium, and the Beppu Onsen, one of the most famous hot spring resorts in Japan. Oita’s unique blend of history and modernity makes it an intriguing destination for travelers seeking cultural immersion.

Nature and Recreation in Oita, Japan

Oita is renowned for its stunning natural beauty, offering a diverse range of outdoor activities. The Kuju Mountains, part of the Aso Kuju National Park, provide ample opportunities for hiking, mountaineering, and camping. The tranquil shores of Beppu Bay offer serene walks, while the nearby Yufuin Hot Springs invite relaxation amid picturesque surroundings. Moreover, Oita boasts a vast network of bike trails, cater to all levels of cyclists, exploring the region’s scenic landscapes.