As dawn broke across the Korean Peninsula on March 6, 2026, residents from Seoul to Pyongyang awoke to a landscape transformed by rain, snow, and a sweep of wintry conditions that blanketed both South and North Korea. The day’s weather, marked by shifting precipitation, strong winds, and sudden temperature drops, prompted widespread advisories from meteorological agencies and left commuters and local authorities scrambling to adapt.
According to the Korea Meteorological Administration (KMA), the day began with rain or snow falling nationwide in South Korea, a pattern that had started the previous night. In the Seoul metropolitan area, precipitation was expected to taper off by 6 a.m., while most other regions would see the rain or snow end by noon. Jeju Island, however, braced for lingering precipitation into the early afternoon. The KMA warned, "In areas where rain or snow falls, visibility will be reduced and roads may be slippery. In particular, icy patches may form in colder regions, so extra caution is advised for traffic safety."
The weather was especially severe in central regions and the mountainous areas of Gangwon Province, where snowfall rates reached 1 to 3 centimeters per hour, with some mountain zones accumulating close to 5 centimeters in a single burst. The KMA signaled the possibility of heavy snow warnings, particularly for the northeastern parts of Gyeonggi and the inland and highland areas of Gangwon. The agency urged, "Please be particularly careful to prevent damage from snow."
Forecasts for March 5-6, 2026, painted a detailed picture of the expected snowfall: northern and southeastern Gyeonggi Province were projected to receive 1 to 5 centimeters, while Seoul, Incheon, and southwestern Gyeonggi would see less than 1 centimeter. Gangwon's mountains were set for 5 to 10 centimeters, with some spots possibly exceeding 15 centimeters. Central and northern Gangwon inland areas eyed 3 to 8 centimeters, and southern Gangwon inland, 1 to 5 centimeters. Similar accumulations—ranging from 1 to 5 centimeters—were expected in parts of Chungbuk, with lighter amounts in Daejeon, southern Chungnam, and Jeonbuk.
Rainfall was equally widespread. The KMA expected 5 to 20 millimeters of rain in Seoul, Incheon, Gyeonggi, Gangwon inland and mountains, Daejeon, Sejong, Chungnam, Chungbuk, Gwangju, Jeonnam, Jeonbuk, and southern Gyeongnam. Busan, Ulsan, mid-eastern Gyeongnam, Daegu, and Gyeongbuk were forecasted for 5 to 10 millimeters, while Jeju Island could see up to 20 millimeters. The agency noted, "During precipitation, the form may vary by altitude, even within the same region, due to differences in temperature between the surface and lower atmosphere."
Morning low temperatures on March 6, 2026, ranged from -2°C to 9°C, with major cities like Seoul and Incheon at 1°C, Chuncheon at 0°C, Gangneung at 5°C, Daejeon at 2°C, Daegu at 6°C, and Busan at 9°C. Daytime highs were expected to span from 5°C to 14°C, with Seoul reaching 6°C and Busan peaking at 13°C. The KMA observed, "Morning temperatures will be higher than average initially but will fall to average or below from the afternoon onward, especially as cold air moves in from the north after the precipitation ends."
But the story didn’t end with precipitation. From the afternoon, strong winds swept across the nation, with gusts reaching up to 55 kilometers per hour (15 meters per second). Offshore and in the seas around Jeju Island, winds intensified to 30–60 kilometers per hour, and waves surged to heights of 1.5 to 4 meters—sometimes even higher in the East Sea, where storm warnings were considered likely. Mariners were cautioned to stay vigilant, as the agency warned, "From the afternoon, strong winds and high waves will occur in most offshore and Jeju sea areas. Ships should exercise particular caution." Thunderstorms threatened southern Jeju and the East Sea, while swells battered beaches and coastal structures, especially along the East and Jeju coasts.
The day’s atmospheric drama was shaped by a trough moving eastward across the Yellow Sea, with high-pressure systems poised to take over in the days ahead. The forecast for March 7 predicted a sharp drop in morning temperatures—by as much as 5 to 10 degrees Celsius—leaving most regions below freezing. The weekend was expected to be mostly clear, though clouds would return by March 8 and 9 as the high-pressure system shifted.
Visibility was another concern. Until 9 a.m. on March 6, thick fog with visibility under one kilometer was expected in central regions (excluding Gangwon’s east coast) and parts of Jeonbuk. The KMA advised, "Especially near rivers, lakes, and valleys, fog may be denser than surrounding areas. Maintain sufficient distance and reduce speed for traffic safety."
Air quality, often a worry in South Korea, offered a rare reprieve. Fine dust levels were forecasted to be "normal" nationwide, though the Seoul metropolitan area might briefly experience "bad" levels of ultrafine dust.
North of the Demilitarized Zone, North Korea’s weather was similarly unsettled. The North Korean Meteorological Agency predicted mostly cloudy skies across the country, with rain or snow in several regions. Precipitation was expected through the afternoon in South and North Pyongan and Hwanghae provinces, and until night in North Pyongan and Hamgyong. According to Yonhap News, "A heavy snow warning is issued for parts of North Hamgyong Province with expected snowfall of 30 to 50 centimeters." Strong winds, reaching 10 to 15 meters per second (about 36 to 54 km/h), were anticipated along the west coast during the afternoon and night.
Specific forecasts included: Pyongyang mostly cloudy with a high of 5°C and a 20% chance of precipitation; Junggang cloudy with occasional snow and a low of -1°C; Haeju clear with a high of 5°C; Kaesong mostly cloudy with a high of 5°C; Hamhung cloudy with occasional rain or snow and a high of 5°C; and Chongjin mostly cloudy with occasional snow and a low of 1°C.
Looking ahead, the KMA’s weekly outlook from March 8 to 15 called for mostly clear to partly cloudy skies, with morning lows between -7°C and 7°C and daytime highs climbing from 6°C up to 15°C by mid-March. The rollercoaster of temperatures and precipitation underscored the volatility of late winter and early spring on the peninsula—a time when a single day can bring sunshine, sleet, and gusts that rattle windows and nerves alike.
For millions across the region, the day was a reminder to keep umbrellas, tire chains, and extra layers close at hand. As the weather shifted hour by hour, the only certainty was change itself—a familiar refrain in the unpredictable Korean spring.