On Monday, the 16th, most regions in South Korea are forecasted to experience morning temperatures dropping below zero degrees Celsius, with a daily temperature difference expected to be around 15 degrees. The Korea Meteorological Administration has indicated that this sharp contrast in temperatures will continue until the following day, particularly with many areas facing below freezing temperatures in the mornings. The daytime highs are expected to reach around 11 to 16 degrees Celsius, varying by location; for example, Seoul is expected to hit 13 degrees, whereas Busan might see highs of 16 degrees.

Furthermore, areas in the central inland and Jeolla regions may experience frost, while light rain may fall in parts of Ulsan and eastern Gyeongnam later in the afternoon. The forecast suggests maximum daytime temperatures will slightly align with or exceed seasonal averages, which range from a minimum of -2 to 5 degrees and a maximum of 11 to 15 degrees for this time of year. Generally, regions such as the Seoul metropolitan area, Gangwon Yeongseo, and Chungcheong are warned about increased fine dust levels, categorized as 'bad', while the rest of the regions are experiencing 'normal' levels of fine dust pollution, although some southern areas and Jeju island are also expected to reach 'bad' levels at certain times during the day.

This significant temperature drop paired with the poor air quality highlights ongoing seasonal transitions in South Korea, indicating that while springtime weather is approaching, challenges such as temperature fluctuations and air quality remain pertinent issues for citizens. As urban areas prepare for changing conditions, it underscores the importance of weather adaptation and public health awareness regarding air pollution, especially in densely populated regions.