South Korea faces frost risk Saturday as weekend warms to mild days.

South Korea is expected to experience a pronounced day-to-night temperature swing this Saturday the 14th, with mild daytime warmth and chilly mornings. The Korea Meteorological Administration says skies will be mostly cloudy nationwide, and some southern inland areas could see frost during dawn to morning hours. Officials also noted that air quality should range from good to moderate across the country.

For the day, the forecast calls for morning lows of -4 to 4 degrees Celsius and daytime highs of 10 to 15 degrees. In major cities, the expected low/high are: Seoul 3°C/12°C, Incheon 3°C/10°C, Suwon 2°C/12°C, Gangneung 2°C/12°C, Daejeon 1°C/14°C, Sejong 0°C/13°C, Gwangju 1°C/15°C, Daegu 0°C/15°C, Ulsan 2°C/12°C, Busan 4°C/13°C, and Jeju 6°C/13°C.

Temperatures are anticipated to be broadly in line with Korea’s seasonal averages for this period, which the agency cites as roughly -4°C to 5°C at night and 9°C to 14°C by day. While daytime values feel springlike, the early-morning chill will be substantial enough to warrant caution, especially for vulnerable individuals and outdoor activities.

Cloud cover is expected to persist across the country on the 14th. Frost could occur from early morning in southern inland regions, a risk that can affect outdoor work and agriculture. The forecast also notes that air pollution levels are likely to be in the good to moderate range nationwide.

The forecast comes from the Korea Meteorological Administration, the country’s state weather service. This kind of weather pattern is of interest beyond Korea because it reflects spring variability in Northeast Asia, with potential implications for regional agriculture, energy demand, and cross-border trade. As a major hub for electronics, automobiles and other high-tech manufacturing, South Korea’s weather can influence factory operations, shipping schedules and supply chains that reach markets in the United States.

The photo accompanying the forecast shows a customer at the Yangju Flower Market Complex in Yangju, Gyeonggi Province, a major wholesale site for potted plants and cut flowers supplying Seoul and nearby regions. Understanding local weather and frost risk is relevant for businesses involved in horticulture and international trade, including U.S. importers of Korean-grown plants or flowers and US-based retailers that rely on timely shipments from Northeast Asia.

In short, a mild but frost-prone weekend is on the horizon for parts of Korea, with overall air quality staying in the clear-to-moderate range. For U.S. readers, the development highlights how spring weather in key Asian economies can ripple through agriculture, energy use, and global supply chains that connect to American markets.