South Korea is experiencing unusually hot afternoons with intense sunshine and temperatures exceeding 30°C across much of the country [1].
These conditions pose immediate risks to public health and infrastructure as the region faces heat levels typically associated with later seasons. The sudden spike in temperature increases the risk of heat-related illnesses and puts additional strain on the national power grid.
Weather officials said the heat is due to a strong high-pressure system. This system is producing clear skies and intense sunshine, factors that have significantly boosted ultraviolet (UV) levels across the peninsula [1].
In the capital city of Seoul, temperatures reached 30°C [1]. Other regions experienced even more extreme heat, with Daegu recording a temperature of 34°C [1]. The widespread nature of the heatwave means that residents in various provinces are facing similar conditions.
Local authorities said citizens should take precautions against the intense sun. The high UV levels associated with the clear skies increase the likelihood of sunburn and other skin-related issues if residents remain outdoors for extended periods without protection [1].
While the high-pressure system remains in place, the combination of heat and sunshine is expected to persist. This weather pattern differs from the typical seasonal progression, creating an environment where temperatures climb rapidly during the afternoon hours [1].
“South Korea is experiencing unusually hot afternoons with intense sunshine.”
The occurrence of temperatures above 30°C in May indicates a deviation from historical weather norms in South Korea. This early arrival of intense heat suggests a volatile atmospheric pattern driven by high-pressure systems, which may lead to increased energy demand for cooling and a higher incidence of heat-related health emergencies earlier in the year than usual.





