A low-pressure system from Shanghai brings cloudy skies and varying rainfall across the nation.
Category: Science
As South Korea welcomes the arrival of spring, a low-pressure system moving eastward from Shanghai is set to bring widespread rainfall across the country on March 30, 2026. The weather forecast indicates that citizens should prepare for cloudy skies and scattered showers.
According to the Korea Meteorological Administration, the rain is expected to begin in the Jeolla region and Jeju Island in the morning, before spreading to the Chungcheong and Gyeongsang regions in the afternoon. By night, the rain is anticipated to reach the central areas of the country.
The expected rainfall amounts vary significantly across regions. Southern Gyeonggi Province may see 5 to 20 mm, whereas Seoul, Incheon, northern Gyeonggi, and the inland areas of Gangwon are forecasted to receive 5 to 10 mm. The mountainous areas and eastern coast of Gangwon, along with Gwangju, Jeonnam, Busan, Ulsan, and Gyeongnam, could experience higher amounts ranging from 10 to 50 mm. In stark comparison, Jeju Island is expected to receive between 30 and 120 mm, indicating a particularly wet day for the region.
In addition to the rain, the temperature is expected to fluctuate between 4 to 12 degrees Celsius in the morning, rising to a maximum of 16 to 21 degrees Celsius in the afternoon. This considerable temperature variation of around 15 degrees emphasizes the need for residents to pay attention to their health.
Air quality is another concern for residents, especially in the capital region and Chungnam, where fine dust levels are predicted to reach 'bad' levels. Other regions are expected to experience 'normal' levels of fine dust. The accumulation of fine dust from previous days, along with domestic sources, will lead to higher concentrations until the rain begins to reduce these levels in the afternoon.
As the spring rains begin to fall, the public is reminded to take precautions against the weather. The strong winds are expected to affect coastal areas, particularly along the Jeonnam and Gyeongsang coasts, where gusts may be more intense. The seas around Jeju Island and the southern coast could also see very high waves, posing risks for maritime activities.
This weather pattern signifies the transition into the warmer months and highlights the importance of being prepared for sudden changes in weather conditions. As the rain nourishes the blooming flora, such as the *Cornus officinalis* (Japanese cornel dogwood) seen in full bloom along Cheonggyecheon Stream in Jongno-gu, the juxtaposition of spring beauty against the backdrop of rainy weather serves as a reminder of nature's rhythms.
In light of these developments, it’s clear that March 30 will be a day of spring showers across South Korea, with varying impacts on daily life and health. As the nation transitions into spring, it how this weather will influence outdoor activities and health precautions in the coming days.