"South Korea covers the southern part of the Korean Peninsula. A 487-square-mile neutral zone separates South Korea from North Korea. The East Sea, lies east of South Korea and separates the country from Japan. The Yellow Sea lies west of South Korea.Forested mountains cover most of central and eastern South Korea, including much of the seacoast. River valleys, hillsides, and some land along the coast are used for farming. The coastal waters yield large amounts of fish. More than a fourth of the South Korean people live in the central and eastern mountains.Plains separated by low hills cover the entire southern coast and almost the entire western coast. These regions are important centers for agriculture. Most of South Korea's important industrial centers, such as Pusan and Seoul, are also in the south and west. About three-quarters of South Korea's people live in these southern and western plains regions.The Naktong River, which is 325 miles (523 kilometers) long, is South Korea's longest river. It flows from the central mountains south to the Korea Strait. The Han River flows from the central mountains west to the Yellow Sea.Most of South Korea's smaller islands are unpopulated. People live on the larger ones. Cheju Island, about 50 miles (80 kilometers) south of the peninsula, is the largest island. It covers about 700 square miles (1,800 square kilometers). Cheju has its own provincial government. Mainland provinces govern the other islands. South Korea's highest mountain, Halla-san (Halla Mountain), rises 6,398 feet (1,950 meters) on Cheju Island." - World Book
"Seasonal winds called monsoons affect South Korea's weather throughout the year. A monsoon blows in from the south and southeast during the summer, bringing hot, humid weather. A cold, dry monsoon blows in from the north and northwest during the winter, bringing cold weather.uly temperatures in South Korea average between 70 and 80 °F (21 and 27 °C). South Korea's massive mountains protect the east coast from the winter monsoon. As a result, the east coast generally has warmer winters than does the rest of the country. Average January temperatures are about 35 °F (2 °C) in the southeast and about 23 °F (–5 °C) in Seoul. Most of South Korea receives from 30 to 50 inches (76 to 130 centimeters) of precipitation (rain, melted snow, and other forms of moisture) yearly. Heavy rainfall from June through August accounts for about half of the yearly precipitation. In most years, one or two typhoons hit the Korean Peninsula during July and August."
-World Book
"Seasonal winds called monsoons affect South Korea's weather throughout the year. A monsoon blows in from the south and southeast during the summer, bringing hot, humid weather. A cold, dry monsoon blows in from the north and northwest during the winter, bringing cold weather.uly temperatures in South Korea average between 70 and 80 °F (21 and 27 °C). South Korea's massive mountains protect the east coast from the winter monsoon. As a result, the east coast generally has warmer winters than does the rest of the country. Average January temperatures are about 35 °F (2 °C) in the southeast and about 23 °F (–5 °C) in Seoul. Most of South Korea receives from 30 to 50 inches (76 to 130 centimeters) of precipitation (rain, melted snow, and other forms of moisture) yearly. Heavy rainfall from June through August accounts for about half of the yearly precipitation. In most years, one or two typhoons hit the Korean Peninsula during July and August."
-World Book