South Korea expects nationwide cloud cover and early-summer temperatures on Monday, with occasional showers predicted for several eastern regions [1].

These fluctuating conditions present a health risk for residents due to significant diurnal temperature variations, making appropriate clothing essential to avoid illness.

YTN weather reporter Yun Su-bin said the sky across the country is currently filled with clouds [1]. At the time of the report, the temperature in Seoul was 23.8°C [1]. This figure is expected to rise by approximately two degrees Celsius by noon [1].

Forecasts for major cities indicate highs of 26°C in Seoul and Daegu, while Gwangju is expected to reach 25°C [1]. However, other reports suggest daytime temperatures nationwide could reach as high as 29°C [2] or approximately 30°C [3].

Rain is expected in specific areas. Yun said that Gangwon, northern Chungbuk, northeastern Gyeongbuk, and eastern Gyeongnam may see sporadic showers between five and 10 mm through the evening [1]. Additional precipitation is possible along the southern coast and on Jeju Island [1, 2].

Because of the gap between daytime highs and nighttime lows, officials advise the public to carry thin outerwear [1]. This precaution helps manage the transition from the relatively cool mornings to the warmer afternoon peaks.

While some reports suggest more severe wind and rain may follow later in the week [3], the immediate forecast emphasizes the transition into early-summer atmospheric conditions [1].

Today the sky across the country is filled with clouds.

The discrepancy between local city forecasts and nationwide averages suggests a volatile weather pattern typical of the early summer transition. The combination of high humidity, cloud cover, and localized showers indicates an unstable atmosphere that may precede more significant seasonal rainfall.