As the unseasonable heat continues, the first heatwave advisory of the year will take effect in Gyeongsan and Yecheon in North Gyeongsang Province, as well as Daegu, as of 11:00 a.m. today (June 18).
A heatwave advisory is issued when the perceived temperature is expected to remain at or above 33°C (91°F) for two or more consecutive days.
Today, the daytime high in Gyeongsan, North Gyeongsang Province, is expected to reach 33°C (91°F), with a perceived temperature of 34°C (93°F).
Looking at daytime temperatures by region, Daegu and Seoul will reach 32°C (90°F), and Daejeon will climb to 31°C (88°F).
Meanwhile, as shower clouds pass through until this morning, less than 5mm of rain is expected in parts of North Chungcheong, North Jeolla, and North Gyeongsang provinces, while 5 to 20mm of rain is forecast for the east coast of North Gyeongsang Province.
Between this afternoon and evening, another round of showers is expected in inland areas, with rainfall amounts ranging from 5mm to as much as 40mm.
Today, the central region will have occasional clouds, while the southern regions and Jeju Island will be cloudy.
Current temperatures are 23.1°C (74°F) in Seoul and 22.4°C (72°F) in Daegu.
(Weather Caster Park Se-rim)
※ Please note: This article was translated by AI and may contain errors.
First Heatwave Advisory of the Year Issued; Showers Expected Nationwide
Jun 18, 2026
