On the 20th, which is also the first day of the hottest season and a Sunday, rain is expected to stop, and hot weather is again anticipated. With the recent rain increasing humidity, a significantly muggy temperature is forecast.
In most areas, the perceived temperature will rise to around 33 degrees Celsius during the day, indicating an intensifying heat. The morning low will range from 22 to 26 degrees, while the afternoon high will be between 29 and 34 degrees, close to or slightly above the seasonal average.
Nationwide, there will be occasional clouds, and the central region will experience cloudy weather until the morning. In some areas, including the metropolitan area, inland areas of Gangwon Province, northern Chungcheong Province, and Jeju Island, sporadic rain is possible until the morning.
The cumulative precipitation expected from the 19th to the 20th is 20 to 80 mm in the metropolitan area and northern Chungcheong Province, 10 to 50 mm in inland Gangwon and mountainous areas, and about 5 mm in Jeju Island.
In addition, scattered showers of 5 to 40 mm are forecasted in areas such as southern inland Gyeonggi Province, southern inland Gangwon Province, inland Chungcheong Province, and northern inland Gyeongsangbuk Province from late afternoon to evening.
With smooth airflow, fine dust levels will remain at a 'good' level nationwide.
The sea waves will reach 0.5 to 1.5 meters in the East Sea and West Sea coastal areas, and 0.5 to 1.0 meters in the South Sea coastal areas.
The wave height in the distant sea (approximately 200 km from the coastline) is predicted to be 0.5 to 2.0 meters in the East Sea and West Sea, and 0.5 to 2.5 meters in the South Sea.