Heavy Rain Expected in Jeju, Strong Winds Advisory

by JEONG SE HEE Posted : September 18, 2026, 09:28Updated : September 18, 2026, 09:28

On September 18, rain is falling in Jeju, the southern coast of Jeollanam-do, the eastern coast of Gyeongbuk, the northeastern mountains, and in Busan, Ulsan, and Gyeongnam due to easterly winds.


According to Yonhap News, Jeju, located at the boundary of cold and warm air, is expected to receive rain at a rate of 20 to 30 mm per hour until the afternoon.


The rain is expected to mostly stop by the afternoon.


The anticipated rainfall amounts are as follows: 10 to 50 mm in Jeju (excluding the northern and western regions), over 80 mm in some areas; 5 to 30 mm in northern and western Jeju; 5 to 20 mm in the southern coast of Jeollanam-do, Busan, Ulsan, and Gyeongnam; 5 to 10 mm in the mountainous areas of Gangwon; around 5 mm in the eastern coast of Gyeongbuk, northeastern mountains of Gyeongbuk, and inland Gyeongnam; and less than 5 mm in the eastern coast of Gangwon, southeastern Jeollabuk-do, Gwangju, and northern Jeollanam-do.


Strong winds exceeding 7 km/h (90 km/h in the Jeju mountains) are expected to continue until the 19th in Jeju, the southern coast of Jeollanam-do, and the western coast of Gyeongnam. Additionally, some inland areas may experience gusts of around 55 km/h (70 km/h in mountainous regions).


The daytime high temperature is expected to range from 23 to 29 degrees Celsius.





* This article has been translated by AI.