South Korea will begin June with nationwide daytime temperatures reaching approximately 30°C [1], according to a forecast from YTN News.
The combination of early summer heat and localized heavy precipitation creates a volatile weather pattern that could disrupt travel and agriculture in the southern regions.
Weather officials said most regions experienced morning commute temperatures around 20°C [1]. In Gangneung, the morning low was 21.3°C [1], which meant the region did not experience a tropical night.
A heavy-rain precautionary warning is currently in effect for the southern coast and the mountainous regions of Jeju Island. This warning follows the movement of a low-pressure trough expected to bring prolonged and intense precipitation to the area [1, 2].
Forecasters expect the mountainous areas of Jeju to receive more than 150 mm of rain by tomorrow [1, 2]. The intensity of the rainfall is expected to reach approximately 30 mm per hour [1].
"Jeju mountains are under a 'heavy rain precautionary warning,' and we expect more than 150 mm in total by tomorrow, with about 30 mm per hour," said YTN caster Won Ida [1].
The forecast indicates a sharp contrast between the heat felt in the interior and the storm systems affecting the south. While the rest of the country manages the transition into June heat, the southern coast remains the primary area of concern for potential flooding, and weather-related hazards.
“Daytime temperatures will reach 30°C nationwide”
The simultaneous occurrence of 30°C heat and intense rainfall indicates a rapid seasonal transition in South Korea. The use of a heavy-rain precautionary warning for Jeju suggests that the low-pressure trough is significant enough to pose a risk of flash flooding or landslides in mountainous terrain, necessitating heightened vigilance for residents and travelers in the southern coastal regions.
