|Like other countries in the temperature zone, the climate of South Korea is characterized by four distinct seasons such as spring, summer, autumn, and winter. In the spring and autumn seasons, sunny weather usually comes up with clear and blue skies. The summer season of South Korea when heavy rainfalls occasionally occur during the monsoon season is hot and humid, with August temperatures ranging from 68 to 79 degrees Fahrenheit (20 to 26 Celsius). And this hot and humid summer is largely due to maritime pacific high. Covering about 70 percent of the Earth's surface, the oceans are a fundamental component of the climatic and seasonal variations in the weather. On the other hand, its winter season is bitterly cold primarily influenced by the Siberian air mass, with temperatures ranging from 23 to 41 degrees Fahrenheit (-5 to 5 Celsius).
Jangma, a part of summer Asian Monsoon systems, continues for a month from late June until late July. During the Jangma season, the frequent heavy rains which are eventually accounting for more than 50 percent of annual precipitation at most stations can result in natural disasters.
In late summer, especially in August, Typhoons usually pass over South Korea and bring torrential rains. Two or three typhoons can be expected per year, from June through September, in South Korea; she is less vulnerable to them compared with Japan, Taiwan, the east coast of China, or the Philippines. Generally speaking, about 28 typhoons annually occur in the western Pacific.