Rain or showers are expected to continue in many parts of the country from August 29 to 31 under the influence of a stationary front. The Korea Meteorological Administration said some areas could see very heavy rain accompanied by gusty winds, thunder, and lightning. In particular, South Chungcheong could receive more than 200 mm of rain from August 30 to 31.
Official Forecast Rainfall for August 29 Varies by Region
The rainfall forecast issued by the Korea Meteorological Administration on August 29 differs by region.
| Region | Forecast rainfall for August 29 |
|---|---|
| Daejeon, Sejong, and South Chungcheong | 20–80 mm |
| North Chungcheong | 20–80 mm |
| Southern Gangwon | 10–50 mm |
| Central and northern Gangwon | 5–20 mm |
The Korea Meteorological Administration noted that areas receiving rain could see heavy rainfall of 20–30 mm per hour, and that heavy-rain advisories could also be issued. During rainfall, roads may become slippery and visibility may be reduced. People should take care around rivers and low-lying areas to prevent accidents.
The August 29 rainfall figures are based on the official forecast. For the outlook for August 30–31, also check subsequent updates and heavy-rain advisories.
South Chungcheong Could Receive More Than 200 mm from August 30 to 31
SBS reported, citing the Korea Meteorological Administration’s forecast, that South Chungcheong could receive more than 200 mm of rain from August 30 to 31. The report also said that North Chungcheong and North Jeolla could receive up to more than 150 mm.
One notable point in this forecast is that expected rainfall amounts differ by region even within the area affected by the same stationary front. The official forecast for August 29 put Daejeon, Sejong, South Chungcheong, and North Chungcheong at 20–80 mm, while media reports cited the possibility of heavier rainfall being concentrated in South Chungcheong from August 30 to 31.
Gangwon Figures Need to Be Checked Against the Release Time
The official forecast for August 29 called for 10–50 mm in southern Gangwon and 5–20 mm in central and northern Gangwon. A separate report gave an outlook of 30–80 mm for southern Gangwon from August 30 to 31, but because the timing differs between the official announcement and the report, the figures should be rechecked against the latest Korea Meteorological Administration forecast.
The Korea Meteorological Administration says that rainfall areas and timing may change as atmospheric pressure systems shift. Forecast figures are therefore not observed measurements, and it is important to check the latest short-term forecast and heavy-rain advisories available at the time of publication.
What to Check Now
- The latest rainfall forecast and heavy-rain advisories for areas you plan to visit on August 29
- Travel plans near rivers and low-lying areas
- Travel risks caused by slippery roads and reduced visibility
- The latest rainfall outlook for South Chungcheong, North Chungcheong, and other central regions from August 30 to 31
This article was prepared based on information verified as of 9:15 a.m. on August 29, 2026. Weather conditions can change, so check the Korea Meteorological Administration’s latest forecast again immediately before publication.
Source: Korea Meteorological Administration, ‘Special Report Notices - Nationwide No. 08-141 Weather Analysis’ https://www.weather.go.kr/w/special-report/list.do?kind=cmt (checked at 9:15 a.m. on August 29, 2026)
Korea Meteorological Administration, ‘Comprehensive Forecast - Nationwide Medium-Range Forecast’ https://www.weather.go.kr/w/forecast/overall/mid-term.do (checked at 9:15 a.m. on August 29, 2026)
SBS News, ‘Heavy rain nationwide through Monday…more than 200 mm of torrential rain possible in the South Chungcheong region’ https://news.sbs.co.kr/amp/news.amp?news_id=N1008727866 (checked at 9:15 a.m. on August 29, 2026)
Chosun Ilbo, ‘Stationary front covering the skies over Korea, up to 200 mm of torrential rain in South Chungcheong through Monday’ https://www.chosun.com/national/transport-environment/2026/08/29/VOZGDJPWSJDIXAJ2FWUYCZ6HFE/ (checked at 9:15 a.m. on August 29, 2026)