South Korea Faces Spring Warm Days, Cold Nights, Coastal Swells, Air Pollution

Spring-like weather typical for this season is settling in across South Korea, with mild daytime temperatures but noticeable evening coolness. Temperature swings can run around 15 degrees Celsius, so people are advised to layer clothing.

Tomorrow is expected to be a public holiday with cloudy skies nationwide. From dawn to morning, drizzle is forecast along the central western coast.

In the afternoon, light rain or snow flurries may brush the mountainous areas of Gangwon, the eastern part of Chungcheongbuk-do, eastern Jeollabuk-do, and the northeastern mountains of Gyeongsangbuk-do.

Strong swells will lash the East Sea coast and the coastlines of Jeju Island, potentially affecting coastal advisories and maritime activity.

Fine dust from overseas sources is expected to worsen air quality from the afternoon, intensifying the typical spring air pollution that affects visibility and health.

Tomorrow morning, most of the country should start above freezing. Seoul and Daegu are forecast near 4°C, with Gwangju around 3°C; some eastern parts of Gyeonggi Province, Gangwon, and inland Gyeongsang may still see subfreezing temperatures. Daytime highs are expected to reach about 13°C in Seoul and 14°C in Busan.

Midweek, a wetter period is forecast for southern Chungcheong and Jeju, with showers possible as systems move through.

For U.S. readers, the forecast matters because South Korea is a major hub in global electronics supply chains and international shipping. Weather and air quality conditions can affect factory operations, port activity in Busan and Incheon, and the timing of shipments for devices and components used worldwide. Coastal swells and dust events are examples of regional weather factors that can ripple through markets and logistics across the Asia-Pacific region. Weather updates are issued by Korea’s meteorological services and are carried by local broadcasters; this forecast is attributed to weather presenter Yang Yunjin.