Rain to sweep across South Korea, spreading from south to central regions overnight

Rain will fall across most of South Korea on Sunday, starting in the southern regions in the morning before spreading to central areas overnight and tapering off in the early hours of Monday.

According to the Korea Meteorological Administration, rain will begin in the morning in the Gyeongsang provinces and on Jeju Island, with showers also reaching northern Gyeonggi Province and the eastern coast of northern and southern Gangwon Province during the day. From the afternoon, rain will extend to the southern inland areas of the Chungcheong region and eastern South Jeolla Province, before spreading to the rest of the central regions at night and ending in the early hours of Monday. Scattered spots in northern Gyeonggi Province, northern Gangwon Province and eastern South Jeolla Province may see trace amounts of less than 0.1 mm between early morning and the morning hours.

Expected rainfall totals are around 5 mm for Seoul, Incheon, Gyeonggi Province, the five West Sea islands, Daejeon, Sejong, South Chungcheong Province and North Chungcheong Province. Inland and mountainous areas of Gangwon Province, eastern North Jeolla Province, eastern South Jeolla Province, Daegu, North Gyeongsang Province and South Gyeongsang Province are forecast to receive 5–20 mm, while Jeju Island is expected to see 5–10 mm.

Skies will be mostly cloudy in the central regions, with clouds thickening from the morning in the southern regions and on Jeju Island. Waves in coastal waters are expected to reach 0.5–2.0 meters in the East Sea, 0.5–1.0 meters in the West Sea and 0.5–1.5 meters in the South Sea.

Morning lows will range from 12 to 20 degrees Celsius and afternoon highs from 20 to 30 degrees, both near seasonal averages. Fine dust levels are expected to remain "good" across all regions, aided by favorable atmospheric circulation.