The beginning of summer, known as the onset of summer (立夏), and Children's Day on the 5th, will see mostly cloudy weather nationwide. From afternoon to night, there will be occasional rain in the Chungcheong region, southern areas, and Jeju Island, and at times in the capital region and Gangwon Province.
Expected cumulative precipitation by the 6th is 5 to 20 mm in Gwangju, Jeonnam, Jeonbuk, Busan, Ulsan, Gyeongnam, and Jeju; 5 to 10 mm in Daegu and Gyeongbuk; and less than 5 mm in Seoul, Incheon, Gyeonggi, Gangwon Province, Daejeon, Sejong, Chungnam, Chungbuk, Ulleungdo, and Dokdo.
As of 5 a.m. that day, temperatures were recorded at 9.4 degrees in Seoul, 9.8 degrees in Incheon, 7.4 degrees in Suwon, 5.5 degrees in Chuncheon, 8.5 degrees in Gangneung, 8.6 degrees in Cheongju, 6.4 degrees in Daejeon, 8.7 degrees in Jeonju, 8.3 degrees in Gwangju, 13.0 degrees in Jeju, 7.1 degrees in Daegu, 13.0 degrees in Busan, 11.9 degrees in Ulsan, and 9.8 degrees in Changwon.
The highest daytime temperature is forecasted to be between 17 and 21 degrees. The temperature difference between day and night will be around 15 degrees, particularly in inland areas, so care should be taken for health.
Due to smooth atmospheric diffusion, the fine dust concentration will be at a 'good' to 'moderate' level across all regions. Dense fog may occur in inland areas, so caution should be taken for traffic safety.
The sea waves will be 0.5 to 1.0 meters high in the East Sea, West Sea, and South Sea. Wave heights in the offshore areas (about 200 km from the coastline) are predicted to be 0.5 to 1.5 meters in the East Sea and West Sea, and 0.5 to 2.0 meters in the South Sea.