On the 5th, which is Arbor Day and a Sunday, skies nationwide will be mostly cloudy before clearing, with daytime highs reaching 20 degrees. However, clouds will return at night, followed by forecast rain.
According to the Korea Meteorological Administration, morning lows will range from 2 to 10 degrees and daytime highs from 14 to 20 degrees. For the time being, temperatures are expected to be similar to or slightly higher than the average (lows 0 to 8 degrees, highs 14 to 19 degrees).
Forecast morning lows in major regions are: ▲ Seoul 5 degrees ▲ Incheon 6 degrees ▲ Chuncheon 5 degrees ▲ Gangneung 9 degrees ▲ Daejeon 5 degrees ▲ Daegu 6 degrees ▲ Jeonju 6 degrees ▲ Gwangju 6 degrees ▲ Busan 9 degrees ▲ Jeju 8 degrees.
Forecast daytime highs are: ▲ Seoul 18 degrees ▲ Incheon 15 degrees ▲ Chuncheon 18 degrees ▲ Gangneung 15 degrees ▲ Daejeon 18 degrees ▲ Daegu 20 degrees ▲ Jeonju 17 degrees ▲ Gwangju 18 degrees ▲ Busan 17 degrees ▲ Jeju 18 degrees.
Rain is expected starting at night. Including southern Gyeonggi, 5 to 20 mm of rain will fall in Seoul, Incheon, northern Gyeonggi, and the five islands of the West Sea. The rain is expected to stop around the afternoon on the 6th.
Fine dust concentrations will be "moderate" across all regions. However, Seoul, northern Gyeonggi, southern Gyeonggi, Yeongseo in Gangwon, the Chungcheong region, Gwangju, and North Jeolla will see "unhealthy" levels for a time in the morning.