in July the mean temperature is about . Because of its southern and seagirt location, Jeju Island has warmer and milder weather than other parts of South Korea. Mean temperatures on Jeju range from in January to in July. The country generally has sufficient rainfall to sustain its agriculture. Rarely does less than of rainfall in any given year; for the most part, rainfall is over . Amounts of precipitation, however, can vary from year to year. Serious droughts occur about once every eight years, especially in the rice-producing southwestern part of the country. About two-thirds of the annual precipitation occurs between June and September. South Korea is less vulnerable to typhoons than Japan, Taiwan, the east coast of China, or the Philippines. From one to three typhoons can be expected per year. Typhoons usually pass over South Korea in late summer, especially in August, and bring torrential rains. Flooding occasionally causes considerable damage, as do landslides, given the country's generally mountainous terrain. In September 1984, record floods caused the deaths of 190 people and left 200,000 homeless. This disaster prompted the North Korean government to make an unprecedented offer of humanitarian aid in the form of rice, medicine, clothes, and building materials. South Korea accepted these items and distributed them to flood victims. Graphically the seasons can be represented this way: Rainy season The rainy season of South Korea refers to a phenomenon in which it rains continuously for several days in summer or rainy season, or the weather, or the rain itself. On average, the rainy season is 30 to 35 days, but it does not continue to rain during this period. In fact, it rains for about 15 to 20 days, and among them, it falls only for about 12 to 16 days due to the stagnant front. However, the rainy season varies greatly from year to year. The rainy season is a representative summer weather in East Asian countries, including the Republic of Korea, and accounts for more than 30% of the precipitation on the Korean Peninsula. For this reason, some call the rainy season the "fifth season."https://terms.naver.com/entry.naver?docId=2441314&cid=51726&categoryId=51726 It is usually a form of torrential rain that pours suddenly and then stops. In particular, the recent rainy season is referred to as a "nocturnal rainy season," and it is often in the form of a lull during the day, and local heavy rain pouring down at