On Thursday, the 12th, South Korea is expected to experience mostly clear weather with daytime highs reaching up to 14 degrees Celsius in some regions. The Korea Meteorological Administration predicts morning lows between -7 to 2 degrees and daytime highs ranging from 7 to 14 degrees, which are similar to or slightly above the average for this time of year. Key regional morning lows include Seoul at -2 degrees and Busan at 2 degrees, while expected daytime highs range from 9 degrees in Seoul to 13 degrees in Busan.

Despite the mild temperatures, concerns regarding air quality arise as fine dust levels are forecasted to be at 'bad' levels in many areas, including Seoul and other metropolitan regions. The forecast predicts high concentrations of fine dust due to stagnant atmospheric conditions, affecting air quality and visibility. Residents, particularly in Seoul, Gyeonggi Province, and the Chungcheong region, should be aware of these conditions and take necessary precautions.

Additionally, while enjoying the mild weather, caution is advised in areas prone to thick fog, which could reduce visibility to less than 200 meters, particularly in Incheon, Gyeonggi Province, and inland areas of Jeolla and Gyeongsang. Increased caution is also necessary for fire management along the eastern coastline, as high winds accompany dry weather conditions. The overall weather situation is expected to remain stable and mild through the weekend, but vigilance for air quality and transportation safety is crucial.