Spring Equinox Brings Mild Weather to South Korea

Seoul, South Korea – March 20, 2026 – South Korea is experiencing mild spring weather as the vernal equinox arrives, with clear skies expected throughout the weekend. Temperatures will range from -4 to 19 degrees Celsius across the country, with some southern regions potentially reaching 20 degrees Celsius.

Weekend Weather Forecast

Saturday will be clear nationwide, with morning lows between -4 and 7 degrees Celsius and daytime highs between 12 and 19 degrees Celsius. A significant temperature difference of 15 to 20 degrees Celsius is anticipated, particularly in inland areas where temperatures will drop below freezing in the morning.

Major city forecasts include Seoul (2°C / 15°C), Incheon (2°C / 12°C), Daejeon (1°C / 17°C), Gwangju and Daegu (2°C / 18°C), Ulsan (4°C / 17°C) and Busan (7°C / 17°C).

Sunday’s Outlook

Sunday will see mostly cloudy skies across most of the country. While cloud cover of 60 to 80% is expected, high-altitude clouds may not significantly impact the feeling of the day. But, Jeju Island will experience cloudier conditions and a chance of less than 5 mm of rain from the afternoon to evening due to a low-pressure system passing over the southern seas.

Sunday’s temperatures will range from -2 to 8 degrees Celsius in the morning and 13 to 18 degrees Celsius during the day.

Safety Concerns

The eastern coast of Gangwon and Gyeongbuk provinces are expected to become drier, increasing the risk of fire. Strong winds are similarly anticipated, requiring extra caution. High waves are expected along the east coast until March 21st, potentially impacting seaside rocks and coastal roads. The Meteorological Administration advises caution to prevent accidents. Yonhap News TV reports on these conditions.

Spring Bloom

The vernal equinox, also known as “chunbun” in Korean, marks a time of seasonal change. Apricot flowers are currently in full bloom at Kyungnam University’s Wolyeong Campus in Masan Happo-gu, Changwon-si, Gyeongsangnam-do, signaling the arrival of spring. Yonhap News Agency captured images of the blooming flowers on March 18, 2025.