On the 23rd, Sanggam (霜降), the seasonal division that signifies the first frost, temperatures nationwide are expected to return to average and the recent chill will ease somewhat. Gangwon Yeongdong, the Gyeongsang region, and Jeju Island will be mostly cloudy. Morning lows are forecast to be around 10 degrees.
According to the Korea meteorological Administration on the 22nd, on the 23rd morning lows are forecast at 8–16 degrees and daytime highs at 16–23 degrees.
Forecast morning lows for major cities are ▲ Seoul 12 degrees ▲ Incheon 11 degrees ▲ Chuncheon 10 degrees ▲ Gangneung 11 degrees ▲ Daejeon 11 degrees ▲ Daegu 12 degrees ▲ Jeonju 11 degrees ▲ Gwangju 13 degrees ▲ Pohang 14 degrees ▲ Busan 16 degrees ▲ Yeosu 15 degrees ▲ Jeju 19 degrees ▲ Ulleungdo/Dokdo 13 degrees.
Forecast highs are ▲ Seoul 18 degrees ▲ Incheon 18 degrees ▲ Chuncheon 18 degrees ▲ Gangneung 16 degrees ▲ Daejeon 20 degrees ▲ Daegu 20 degrees ▲ Jeonju 21 degrees ▲ Gwangju 21 degrees ▲ Pohang 19 degrees ▲ Busan 22 degrees ▲ Yeosu 21 degrees ▲ Jeju 22 degrees ▲ Ulleungdo/Dokdo 16 degrees.
There will be occasional rain along the East Sea coast of North Gyeongsang and in Gangwon Yeongdong from the morning, with some places seeing occasional rain in Busan, Ulsan, and Jeju Island in the morning.
Expected rainfall amounts are ▲ Gangwon Yeongdong 20–60 mm ▲ North Gyeongsang northern East Sea coast and northeastern highlands 5–20 mm ▲ Busan and Ulsan 5 mm ▲ Ulleungdo/Dokdo 10–40 mm ▲ Jeju less than 5 mm.
Fine dust levels will be at a "good" level across all regions.