As hot weather continues day after day, the first heatwave advisory of the year will be issued for parts of the Yeongnam region tomorrow, June 18.
The advisory will be in effect for three areas: Daegu, Gyeongsan in North Gyeongsang Province, and Yecheon.
A heatwave advisory is issued when the real-feel temperature is expected to remain at or above 33°C (91°F) for two or more consecutive days.
Let’s look at the daytime temperature for Gyeongsan, North Gyeongsang Province, tomorrow.
The real-feel temperature is expected to climb to 34°C (93°F), with an actual temperature of 33°C (91°F) forecast.
While no advisory has been issued for Seoul, the heat will continue with temperatures exceeding 30°C (86°F) through the day after tomorrow.
Please take care of your health to avoid exhaustion from the heat.
Showers are also forecast for various inland areas tomorrow due to atmospheric instability.
Rainfall is expected to range from 5mm to a maximum of 30mm.
Today, strong shower clouds developed mainly in the Chungcheong and Honam regions due to atmospheric instability.
As strong showers of 20 to 30mm per hour may occur in various parts of the country until early tomorrow morning, please be cautious of safety accidents.
Let’s take a look at the detailed temperatures for tomorrow.
Seoul will start the morning at 21°C (70°F), similar to today, and the daytime high in Seoul will reach 31°C (88°F), while Daegu will rise to 33°C (91°F).
The weather will turn cloudy toward the end of the week.
Rain is expected to begin in Jeju, South Jeolla Province, and South Gyeongsang Province on Friday, and will spread across the entire country on Saturday.
The rain is expected to bring some relief from the heat.
(Weather Caster Nam Yu-jin)
※ Please note: This article was translated by AI and may contain errors.
First Heatwave Advisory of the Year Issued; Real-Feel Temperatures to Reach 34°C (93°F)
Jun 17, 2026
