On the morning of the 17th, which is both Lunar New Year's Day and a Tuesday, temperatures in most areas will be below freezing and cold. However, from the afternoon, temperatures will rise, bringing milder weather.
According to the Korea Meteorological Administration, at 5 a.m. the temperatures were ▲Seoul -2.2 C ▲Incheon -2.5 C ▲Suwon -5.1 C ▲Cheongju -2.1 C ▲Gangneung -1.0 C ▲Daejeon -3.3 C ▲Gwangju Metropolitan City -1.3 C ▲Daegu -0.4 C ▲Busan 4.7 C ▲Changwon 2.9 C ▲Jeju 5.2 C.
Most areas nationwide will be clear. Jeju Island will be mostly cloudy, with a few places seeing raindrops of less than 0.1 mm, but it is expected to gradually clear.
The chilly weather is expected to become milder from the afternoon. The daytime high is forecast at 4–13 C.
The east coast and mountains of Gangwon are expected to be very dry. In addition, along the east coast, some places may see gusts around 55 kph (15 m/s). In the mountains, gusts are forecast to reach up to 70 kph. The Korea Meteorological Administration urged the public to prevent wildfires.
Fine dust concentrations are expected to be at "good" to "moderate" levels nationwide due to smooth atmospheric dispersion.
Waves will run 0.5–2.0 m on the East Sea nearshore, 0.5–1.0 m on the West Sea nearshore, and 0.5–1.5 m on the South Sea nearshore. In the inner offshore waters (offshore areas within about 200 km of the coastline), wave heights are forecast at 1.0–2.5 m in the East Sea and 0.5–2.5 m in the West and South Seas.