The rainy season is expected to begin this summer with rain starting in Jeju on the night of the 30th. The rainy season usually begins in mid- to late June, but this year it was delayed as the North Pacific high pressure that forms the rainy season front expanded more slowly than usual. The next day, the 1st of next month, the congestion front will expand to the southern region. According to the Korea Meteorological Administration, 5 to 30 mm of rain is expected to fall on the southern coast of Jeonnam and Gyeongnam, and 30 to 100 mm on Jeju Island (more than 120 mm in many mountainous areas) over the next two days. Rain in the southern region will mostly stop on the 1st of next month, but on Jeju Island it will continue until dawn on the 2nd. Because the rainy season starts from Jeju and moves up to the central region, the Korea Meteorological Administration announces the rainy season for Jeju, the southern region, and the central region separately. It is difficult to predict when the rainy season will begin in the central region. On the 30th, a heat wave warning was maintained in Seoul and other parts of the metropolitan area, South Chungcheong Province, and North Chungcheong Province. On the 1st of next month, the daytime high temperature will rise above 30 degrees, especially in the inland, and intermittent showers will continue. On this day, 5 to 40 mm fell in northern Gyeonggi Province,