South Korea forecast: cold morning on 23 Oct, rain from afternoon in Jeju and south
In short
South Korea's forecast for 23 October, the solar term Sangang, is for morning lows of 3 to 14 degrees and daytime highs of 18 to 23 degrees. Rain is expected to start in Jeju in the afternoon and spread to the south at night. Yonhap links the rain and strong winds to Typhoon Champi.
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South Korea is forecast to have a cold morning on 23 October, the solar term Sangang, which Yonhap and Newsis describe as the time when frost falls. Yonhap said cold air coming in from the northwest would hold morning lows at 3 to 14 degrees. Most areas are expected to fall below 10 degrees, and northern Gyeonggi, eastern inland areas and inland and mountain areas of Gangwon to 5 degrees or lower. [ 2 , 6 ]
Daytime highs are expected at 18 to 23 degrees, so the gap between day and night is around 15 degrees, and Newsis advised readers to look after their health. Newsis said frost would form in places inland, and ice might form in parts of Gangwon, so farm crops need care. A Newsis report from Jeonbuk said frost and ice were possible in the northeast of the province, including Muju, Jinan and Jangsu. [ 2 , 6 , 10 ]
Rain is expected to start in Jeju in the afternoon and to reach South Jeolla and the Gyeongnam south coast at night. Forecast rainfall for 23 and 24 October is 30 to 80 mm in Jeju excluding the north and west, 10 to 40 mm in northern and western Jeju, and 5 to 30 mm in Gwangju, South Jeolla, Busan, Ulsan and South Gyeongsang. Yonhap also gave 5 to 20 mm for Daegu and North Gyeongsang and 5 to 10 mm for North Jeolla. [ 2 , 5 , 6 ]
Yonhap said the rain in the south and Jeju could continue until the morning of 26 October, and that some places in Chungcheong and the Gangwon east coast and mountains could see rain on the afternoon of Sunday 25 October. Newsis reported rain across Jeonbuk from the morning of 24 October to the afternoon of 25 October, at 5 to 20 mm. [ 2 , 10 ]
Yonhap linked the rain to Typhoon No. 30 Champi and to a subtropical high southeast of Japan, whose moisture meets the existing cold air. It said the typhoon passed about 620 km southeast of Taipei at 15:00 on 22 October at intensity 4. It was expected to turn toward Kyushu on the morning of 23 October and weaken as it moved north. [ 2 ]
Jeju is forecast to have gusts of at least 70 km/h, and at least 90 km/h in the mountains, from the afternoon of 23 October. Yonhap said this could disrupt flights and advised checking flight information, while Asia Economy and Newsis said a strong-wind warning might be issued. Yonhap also said wind and waves would rise on the sea south of Jeju and in the outer sea east of the South Sea, with waves up to 5.0 m or more by dawn on 24 October. It advised people to avoid the coast because of swells. [ 2 , 5 , 6 ]
Why it matters
The outlets advise readers to dress for the cold morning and watch for a daily temperature gap of around 15 degrees. They also warn of rain, strong winds and high waves in Jeju and the south, with possible disruption to flights.
Key facts
- Morning lows on 23 October are forecast at 3 to 14 degrees and daytime highs at 18 to 23 degrees, with a day-night gap of around 15 degrees. [ 2 , 6 ]
- Most areas are expected to fall below 10 degrees in the morning, and the northern Gyeonggi and inland Gangwon areas to 5 degrees or lower. [ 2 , 5 , 6 ]
- Rain is forecast to start in Jeju in the afternoon of 23 October and to reach Jeolla and the Gyeongnam south coast at night. [ 2 , 6 ]
- Forecast rainfall for 23 to 24 October is 30 to 80 mm for Jeju excluding the north and west, 10 to 40 mm for northern and western Jeju, and 5 to 30 mm for Gwangju, South Jeolla, Busan, Ulsan and South Gyeongsang. [ 2 , 5 , 6 ]
- Jeju is forecast to get gusts of at least 70 km/h, and at least 90 km/h in mountain areas, from the afternoon of 23 October. [ 2 , 5 , 6 ]
- Yonhap said rain in the south and Jeju may last until the morning of 26 October. [ 2 ]
- Frost is expected in places inland, and ice may form in parts of Gangwon, according to Newsis. [ 6 , 7 ]
Confirmed by several sources
- Morning lows of 3 to 14 degrees and daytime highs of 18 to 23 degrees are forecast for 23 October. [ 2 , 6 ]
- Rain is forecast from the afternoon of 23 October in Jeju and the southern regions, with the heaviest amounts expected in Jeju. [ 2 , 4 , 5 , 6 ]
- Strong winds of at least 70 km/h, and 90 km/h in mountain areas, are forecast for Jeju. [ 2 , 5 , 6 ]
Still unclear
- Forecast temperatures for some cities differ between outlets. Yonhap (doc 1) lists Daejeon at 6 and 22 degrees, Daegu at 7 and 22, Ulsan at 12 and 21 and Busan at 14 and 22. Asia Economy (doc 3) and Newsis (doc 4) list Daejeon at 4 and 22, Daegu at 8 and 21 and Busan at 15 and 21, and Newsis lists Ulsan at 13 and 20.
- Whether a strong-wind warning will be issued for Jeju. Asia Economy and Newsis say a warning may be issued, and no document says one has been.
- How the typhoon will affect Korea beyond the forecast conditions. Only Yonhap (doc 1) names Typhoon Champi and says it was expected to turn toward Kyushu and weaken as it moves north.
What local media are saying
Timeline, local time
- On 22 October Typhoon Champi passed about 620 km southeast of Taipei at intensity 4, Yonhap reported. [ 2 ]
- Newsis reported that northern Gyeonggi would be 5 degrees or lower in the morning of 23 October, with frost inland. [ 7 ]
- Newsis reported that Jeonbuk would be mostly clear before clouding over in the afternoon, with rain across the province from the morning of 24 October. [ 10 ]