Please be well-prepared for the heat today, which is Dano Day.
With heatwave advisories issued for the Seoul metropolitan area and other regions yesterday, today's daytime highs are expected to reach 33°C (91°F) in Seoul, Chuncheon, and Cheongju, and 32°C (90°F) in Daejeon and Daegu.
However, heavy rain is forecast across the country through tomorrow, which will help cool down the heat.
The rain will begin in Jeju today and expand nationwide by tonight.
By tomorrow, the expected rainfall is over 250mm in the mountainous regions of Jeju, and up to 100mm or more of heavy rain is forecast for the southern coast, areas near Jirisan Mountain, and the east coast of Gangwon Province.
Other regions, including Seoul, are also expected to see significant rainfall ranging from 30mm to 80mm.
This rainfall is expected to be accompanied by gusts, thunder, and lightning, with the heaviest downpours occurring between tonight and tomorrow morning, so please take precautions to prevent any damage.
Before the rain arrives, some areas in the central-western region and the north-central part of Gyeongbuk Province may experience occasional showers of 5mm to 30mm during the day.
After the rain, the daytime heat is expected to ease slightly next week.
[Weather Caster Park Se-rim]
※ Please note: This article was translated by AI and may contain errors.
Heatwave During the Day, Rain at Night... Up to 250mm of Rainfall Expected in Jeju
Jun 19, 2026
