The climate difference between the northern and southern parts of the Korean peninsula is remarkable. The climate in the south of the peninsula is similar to that in Japan. Influenced by the warm current in the east of Korea, the climate has maritime characteristics. However, the climate in the northern part of the peninsula is similar to that in the northeast of China, with obvious continental characteristics. 1 month, the highest temperature difference between north and south of the Korean peninsula reaches 20 degrees Celsius.
However, the whole Korean peninsula is affected by the East Asian monsoon in midsummer and typhoons are frequent in autumn. Most of the rainfall occurs in summer, and nearly half of the annual rainfall occurs in the monsoon season. Except Jeju Island, the winter temperature on the Korean Peninsula is below zero degrees Celsius. There is little precipitation in winter, except that it seldom snows in mountainous areas.
There are more than 3,000 known plant species on the Korean peninsula, of which more than 500 are endemic to the Korean peninsula. The climate of the Korean Peninsula can be divided into subtropical zone, warm temperate zone and middle temperate zone. Subtropical distribution in the southern coast of the peninsula and Jeju Island, vegetation is broad-leaved evergreen vegetation. Most of the peninsula is warm temperate zone, and the vegetation is dominated by Korean pine and broad-leaved deciduous plants. The northernmost part of the Korean peninsula is in the middle temperate zone, and the vegetation is mainly larch and juniper.