On the 23rd, which is Chubun (autumnal equinox) when day and night are the same length and a Tuesday, the country will be mostly cloudy. Jeju Island will see rain from the morning, and parts of the South Coast will get rain from late at night.
Expected rainfall through the 24th over two days: Seoul, Incheon, and Gyeonggi 20–60 mm; Gwangju, South Jeolla, North Jeolla, Busan, Ulsan, South Gyeongsang, Daegu, North Gyeongsang, Ulleung Island and Dokdo, and Jeju Island 10–40 mm.
Morning lows are forecast at 14–21 C, with daytime highs at 23–28 C.
Inland areas will see large day-to-night temperature differences of 10–20 degrees, so take care with your health.
Fine dust levels will be at a "good" level nationwide thanks to smooth atmospheric dispersion.
Until the morning, parts of the Gangwon mountains will have fog with visibility under 1 km due to a low cloud deck, so caution is needed while driving to prevent rear-end collisions and other accidents.
Over the southern seas and the waters off Jeju Island, some areas will see thunder and lightning with gusts, so use caution for maritime safety.
Waves will run 0.5–2.0 meters in the East and South Sea coastal waters and 0.5–1.5 meters in the West Sea coastal waters. In the inner offshore (far seas within about 200 km of the coastline), wave heights are forecast at 0.5–3.0 meters in the East Sea, 0.5–3.5 meters in the West Sea, and 1.0–3.5 meters in the South Sea.