Yeosu Climate & Monthly Temperature Overview – Korea, South

Spring (March-May)

Spring in Yeosu, South Korea, is a delightful season characterized by mild temperatures and blossoming flowers. The average temperature ranges from 40 to 65 degrees Fahrenheit (4 to 18 degrees Celsius), with warm and sunny days. The humidity levels are moderate, making it comfortable to spend time outdoors. This season is ideal for exploring the city’s parks, gardens, and scenic coastline. March can be relatively chilly, with temperatures dropping below 40 degrees Fahrenheit, while April and May witness a gradual rise in temperatures and more sunshine.

Summer (June-August)

Summer in Yeosu is relatively hot and humid, with average temperatures ranging from 65 to 85 degrees Fahrenheit (18 to 29 degrees Celsius). July is the hottest month, with temperatures often reaching the high 80s or low 90s Fahrenheit. Humidity levels can be high, creating a somewhat uncomfortable feeling. However, the city’s proximity to the ocean provides a refreshing breeze, making it more bearable. Summer is an excellent time for enjoying water activities, such as swimming, boating, and fishing. Outdoor events and festivals are also prevalent during this season, providing opportunities for entertainment and cultural immersion.

Summer Season

During the summer months in Yeosu, Korea, South, temperatures soar to an average high of 30°C (86°F). With an average humidity level of 70%, the air can feel oppressive, especially during the hottest hours of the day. The peak summer months of July and August experience the highest temperatures, with daily highs often reaching the mid-30s Celsius (90s Fahrenheit). However, the nights provide some relief, as temperatures typically drop to around 23°C (73°F).

Winter Season

In contrast to the sweltering summers, winters in Yeosu are characterized by chilly temperatures, with an average low of 2°C (36°F) in January, the coldest month. While temperatures rarely dip below freezing, biting winds from the sea can make it feel much colder. Snowfall is uncommon in Yeosu, and when it does occur, it typically melts quickly. The winter months also bring increased cloud cover and precipitation, with rain or drizzle being a common occurrence.

Appearance and Distribution

The skies of Yeosu, South Korea are adorned with a diverse array of cloudscapes. Cumulus clouds, with their distinct puffy appearance, often dominate the horizon, casting fleeting shadows upon the landscape. During fair weather, these clouds appear scattered and isolated, resembling cotton balls adrift in the sky. However, as weather conditions change, cumulus clouds can coalesce into larger formations, creating dramatic and ever-changing cloud patterns.

In the spring and summer months, Yeosu experiences abundant rainfall, which influences the appearance and distribution of clouds. Nimbostratus clouds, characterized by their gray and overcast nature, often blanket the sky during rainy periods. These clouds produce steady and prolonged precipitation, contributing to the region’s humid climate. Stratus clouds, on the other hand, tend to be thinner and less dense, often forming a uniform layer that obscures the sun. Their presence often indicates the approach of inclement weather or fog.

Average Precipitation

Yeosu, South Korea, receives abundant precipitation throughout the year, with an average annual rainfall of approximately 1,300 millimeters (51 inches). The wettest months are typically June to September, when the monsoon season brings heavy rainfall and potential flooding. During this period, monthly precipitation averages around 200-300 millimeters (8-12 inches). Winter months, on the other hand, experience significantly less precipitation, with monthly averages below 50 millimeters (2 inches) from December to February.

Seasonal Variability

Precipitation patterns in Yeosu vary considerably with the changing seasons. During the summer monsoon season, intense rainfall events are common, with short but heavy downpours contributing to the high monthly precipitation totals. In contrast, the winter months are characterized by relatively dry conditions, primarily due to the influence of cold, dry continental air masses from the north. Spring and autumn months typically experience a mix of precipitation patterns, transitioning between the wet summer season and the drier winter season.

Seasonal Patterns

Yeosu, South Korea experiences distinct seasonal variations in rainfall. The wettest months are June, July, and August, when the region is influenced by the East Asian monsoon. During this period, heavy rainfall and occasional typhoons bring significant amounts of precipitation, contributing to over half of the annual rainfall. The city receives moderate rainfall during spring and autumn. In contrast, winter months are relatively dry, with precipitation primarily falling as snow or sleet.

Annual Rainfall and Distribution

Yeosu’s annual rainfall averages around 1,400 millimeters (55 inches), which is considerably higher than the Korean national average. The rainfall distribution is relatively even throughout the year, with some fluctuations based on seasonal patterns. In recent years, the city has witnessed an increase in extreme rainfall events, likely attributed to climate change. These events can cause flash floods, landslides, and other hazardous conditions, highlighting the importance of proactive measures for disaster prevention and mitigation.

Historical Snowfall in Yeosu

Yeosu, a coastal city in South Korea, witnessed an extraordinary snowfall on January 18, 2023. The snowfall, which lasted several hours, blanketed the city in a thick layer of snow, reaching an accumulation of over 20 centimeters in certain areas. Accumulations were lightest in coastal areas and increased further inland. This was the heaviest snowfall ever recorded in Yeosu, surpassing the previous record set in 1986. The snowfall led to disruptions in transportation, with roads and highways closing down due to icy conditions. Schools and businesses were also closed, and residents were advised to stay indoors.

Impact on the City

The heavy snowfall had a significant impact on the city. The weight of the snow caused trees and power lines to fall, resulting in power outages and disruptions in communication. City crews worked tirelessly to clear the roads and restore power, but it took several days for the city to return to normal. The snowfall also brought joy to many residents, who enjoyed the opportunity to build snowmen and engage in winter activities. However, authorities urged caution as the heavy snow could pose risks of injury and damage to property. Despite the challenges, the snowfall was a beautiful and memorable event for the city of Yeosu.

General Climate and Conditions
Yeosu, nestled on the southern coast of South Korea, experiences a subtropical climate, characterized by hot, humid summers and mild winters. Summer temperatures soar to an average high of around 32 degrees Celsius (90 degrees Fahrenheit) in August. The relentless heat is accompanied by high humidity levels, which often make the air feel even warmer. Winters, on the other hand, are relatively mild, with average low temperatures hovering around 0 degrees Celsius (32 degrees Fahrenheit) in January. Precipitation is fairly evenly distributed throughout the year, but the monsoon season, which spans June to August, brings heavy rainfall.

Seasonal Sunshine
The amount of sunshine in Yeosu varies considerably throughout the year. During the summer months, the days are typically long and sunny, with an average of 7-8 hours of sunshine per day. This abundance of sunshine provides ample opportunities for outdoor activities and soaking up the coastal beauty. In winter, however, the days are shorter and cloud cover is more common. As a result, the average sunshine hours drop to around 4-5 hours per day, making it more challenging to enjoy the sun’s warmth. Despite the seasonal variations, Yeosu offers a pleasant climate overall, with a good balance of sunshine, warmth, and humidity.

The Moon’s Illumination in Yeosu

The moon adorns the skies over Yeosu, South Korea, with an ethereal glow that casts a silvery shimmer upon the city and its surroundings. The moon, in its celestial dance, ascends from the eastern horizon, gradually illuminating the cityscape with its pale, enigmatic light. As night deepens, the moon takes center stage, bathing Yeosu in a soft, ethereal radiance. The city’s buildings and structures emerge from the darkness, their silhouettes outlined against the moonlit sky, creating a surreal and enchanting spectacle.

The moonlight’s gentle embrace transforms Yeosu into a nocturnal paradise. Citizens and visitors alike emerge from their homes, drawn to the moon’s captivating charm. Couples stroll hand-in-hand along the Moonlit Path, a charming promenade that winds through the city’s center. Artists set up their easels, capturing the breathtaking scenes on canvas, preserving the beauty of the moonlit night. The moonlight also invites nocturnal creatures to emerge, creating a harmonious symphony of nature under the moon’s watchful gaze.

Humidity Levels and Seasonal Variation

The relative humidity in Yeosu, South Korea, exhibits significant variations throughout the year. The wet season, which spans from June to September, is characterized by high humidity levels, often exceeding 80%. This period coincides with the East Asian monsoon, which brings warm and moist air from the Pacific Ocean. During this time, Yeosu experiences heavy rainfall and frequent thunderstorms.

In contrast, the winter months (December to February) are generally dry and cold, with relative humidity levels dropping below 50%. The dry air is attributed to the prevailing northerly winds that originate from the cold Siberian plains. These winds carry little moisture and contribute to the low humidity conditions. The spring (March to May) and autumn (October to November) months experience moderate humidity levels, ranging between 60% and 70%.

Impact on Health and Comfort

High humidity levels can affect human health and comfort. When the air is saturated with moisture, sweat evaporates more slowly, making it harder to cool down the body. This can lead to heat-related illnesses such as heat exhaustion and heat stroke. Additionally, high humidity creates a favorable environment for mold and other allergens, which can exacerbate respiratory problems for those with allergies or asthma.

On the other hand, low humidity levels can also be problematic. Dry air can cause skin irritation, dry eyes, and respiratory discomfort. It can also damage wooden furniture and other household items. Maintaining an optimal humidity level of around 40% to 50% is important for both human health and comfort.

Wind Patterns

Yeosu, South Korea, experiences varied wind patterns throughout the year. During the northeast monsoon season, which typically lasts from late October to early March, strong winds from the northwest prevail. These winds can reach speeds of up to 20 meters per second (45 miles per hour) and can bring cold, dry air from Siberia. In contrast, during the southwest monsoon season, which occurs from late May to early September, the winds shift to the southwest and become warmer and more humid, bringing moisture from the Pacific Ocean.

Wind Energy Potential

The strong winds in Yeosu provide a significant potential for wind energy generation. The area has several wind farms in operation, and additional projects are under development. Wind turbines take advantage of the prevailing winds to generate electricity, providing a clean and renewable source of energy. The development of wind energy in Yeosu aligns with South Korea’s goal of achieving carbon neutrality by 2050. By harnessing the natural wind resources, the city can reduce its reliance on fossil fuels and contribute to the fight against climate change.

Spring (April-May)

Spring in Yeosu is a season of vibrant colors and blooming flowers. The mild temperatures, typically ranging from 10-20 degrees Celsius (50-68 degrees Fahrenheit), make it an ideal time for outdoor activities. The iconic Expo Ocean Park becomes a spectacle of cherry blossoms, while various gardens and parks showcase a kaleidoscope of flowers. Moreover, the Yeosu World Expo Gardens host the annual Tulip Festival, offering a vibrant tapestry of tulips, a perfect backdrop for picnics and strolls.

Autumn (October-November)

Autumn in Yeosu is renowned for its stunning foliage and picturesque landscapes. The rolling hills and forests transform into a canvas of fiery reds, golden yellows, and vibrant oranges. The average temperatures range from 10-15 degrees Celsius (50-59 degrees Fahrenheit), creating a crisp and refreshing atmosphere. The Dolsan Island, a popular hiking destination, offers breathtaking views of the autumn hues from its summit. Additionally, visitors can witness the annual Yeosu Ginkgo Festival, where the city’s streets are adorned with golden ginkgo trees, providing an enchanting and memorable experience.

Solar Energy Potential in Yeosu, South Korea

Yeosu, located in the southern coastal region of South Korea, boasts abundant solar energy resources. The city experiences an average of 1,800 to 2,000 sunshine hours annually, with clear skies and minimal cloud cover. This favorable climate positions Yeosu as an ideal location for solar energy development. Moreover, Yeosu’s flat terrain and vast open spaces provide ample land for the construction of large-scale solar farms.

Implementation and Development of Solar Energy

Recognizing the potential of solar energy, the city of Yeosu has actively promoted its development through various initiatives. The Yeosu City Government has established a dedicated Solar Energy Industry Support Center to provide resources and incentives to businesses and individuals interested in investing in solar energy. Additionally, the city has implemented a feed-in tariff scheme to encourage the adoption and use of renewable energy sources, including solar power. As a result of these efforts, Yeosu has witnessed the establishment of several solar power plants, both small-scale rooftops and large-scale utility-scale installations. The city aims to increase its solar energy capacity in the coming years, contributing to South Korea’s national goal of achieving carbon neutrality by 2050.

General Topography

Yeosu, located in the southern region of South Korea, features a diverse topography characterized by a combination of coastal plains, hills, and mountains. The coastline is irregular, with numerous inlets and bays, forming picturesque harbors and islands. The inland areas are predominantly mountainous, forming part of the Taebaek Mountains that run along the eastern side of the Korean Peninsula. The highest peak in the area is Seondalsan, standing at an elevation of 644 meters. The rugged terrain provides a backdrop of verdant forests and scenic valleys, contributing to the city’s natural beauty.

Yeosu’s Coastal Plain and Islands

Along the coast, Yeosu boasts a vast coastal plain that gradually slopes towards the sea. The plain is largely flat or gently undulating, providing fertile land for agriculture and supporting residential and commercial development. The coastal areas are home to a number of islands, including the iconic Odong-do and Hwangeum-do, which offer panoramic views of the surrounding seascape. The islands are popular tourist destinations, known for their pristine beaches, unique rock formations, and historical landmarks. The coastal plain and islands play a significant role in Yeosu’s maritime economy, supporting fishing, shipbuilding, and tourism industries.

Yeosu Airport

Yeosu Airport (RSU) is the closest airport to the city of Yeosu, South Korea. Located just 5 kilometers from the city center, Yeosu Airport is a small regional airport that primarily serves domestic flights within South Korea. The airport has one runway and a single terminal building. Airlines that operate at Yeosu Airport include Asiana Airlines, Eastar Jet, and Jeju Air.

Other Nearby Airports

While Yeosu Airport is the closest airport to Yeosu, there are several other airports within a few hours’ drive of the city. Gwangju Airport (KWJ) is located approximately 50 kilometers from Yeosu and offers a wider range of domestic and international flights. Incheon International Airport (ICN), the main international airport serving Seoul, is located around 300 kilometers from Yeosu and offers the most extensive network of flights. However, due to its distance from Yeosu, Incheon Airport is typically only used by travelers who are connecting to international flights or who have a long layover in Seoul.

Landscapes and Natural Attractions

Yeosu, a coastal city in South Korea, boasts breathtaking landscapes and natural wonders. With its pristine beaches, tranquil islands, and picturesque coastline, it offers a captivating escape into nature. Odongdo Island, renowned for its unique rock formations and stunning seascapes, is a popular spot for tourists to explore and marvel at the beauty of the archipelago. The expansive Yeosu Marine National Park, home to a diverse ecosystem, provides opportunities for hiking, camping, and wildlife viewing, allowing visitors to immerse themselves in the wonders of the natural world.

Cultural Heritage and Historic Significance

Yeosu is steeped in cultural heritage and holds significant historic value. It played a pivotal role in the maritime trade during the Joseon Dynasty and served as a major port for exporting agricultural products. The city is home to several historic landmarks, including the Yeosu Expo 2012 Monument, which commemorates the international exposition held in the city. The Dolsan Bridge, an architectural marvel, connects the mainland to Dolsan Island and offers panoramic views of the surrounding area. Yeosu’s rich cultural heritage is further evidenced by its traditional festivals, such as the Yeosu Marine Exhibition Festival and the Yeosu Night Sea Festival, which celebrate the city’s maritime identity and vibrant cultural traditions.