Clear Hangul Day forecast for South Korea, rain for south and Jeju on October 10-11
In short
South Korea is forecast to be mostly clear and mild on Hangul Day, October 9, the Korea Meteorological Administration said on October 8. Rain is expected mainly in the southern region and Jeju on October 10-11, with up to 5-20mm forecast for Busan, Ulsan and South Gyeongsang on the 10th. Rain may continue into October 12-13, and typhoons No. 28 and No. 29 southeast of Japan could affect the country, forecasters said.
Read the full story 2 min read
South Korea is forecast to see mostly clear and mild weather on Hangul Day, October 9, before rain falls mainly over the southern region and Jeju on October 10 and 11, according to the Korea Meteorological Administration's forecast reported by local outlets on October 8. Yonhap, Kyunghyang Shinmun and Hankook Ilbo described October 9 as good weather for outings. [ 1 , 3 , 4 , 5 ]
At the agency's regular briefing on October 8, forecast analyst Gong Sang-min (공상민) said migratory high pressure over the country would keep the weather mostly clear through the 9th. He said that on the 10th and 11th the high would move east and warm, humid air from the south would flow in, bringing rain mainly to the southern region and Jeju. Newsis reported he said the rain would fall mainly in mountain areas east of the Sobaek Mountains, that heavy rain with thunder, lightning and gusts was possible over the South Sea and the waters off Jeju, and that people inland and in the Yeongdong area of Gangwon should take care over wildfires because the air is dry. [ 2 , 3 ]
Forecast rainfall for October 10 is 5-20mm for Busan, Ulsan and South Gyeongsang, 5-10mm for South Jeolla, North Gyeongsang and Jeju, and under 5mm for North Jeolla. Yonhap and Hankook Ilbo also listed Gwangju and Daegu at 5-10mm. Hankook Ilbo reported that the central region is expected to be cloudy without much rain. [ 1 , 3 , 4 ]
Temperatures are forecast 2-3 degrees above normal; Kyunghyang Shinmun gave normal lows of 8-16C and highs of 21-24C. Outlets said cold air from the north is not expected to move south during the holiday, so mornings should not turn sharply cold. For October 9, Kyunghyang Shinmun reported lows of 7-16C and highs of 24-26C, while Hankook Ilbo reported lows of 6-16C and highs of 24-27C, including 13-25C in Seoul, 16-26C in Busan, 13-26C in Gwangju and 11-26C in Daegu. Gong said daytime temperatures could feel hot, while inland and mountain areas would be chilly, with a day-night gap of 10-15 degrees or more. [ 1 , 2 , 3 , 4 ]
Rain may continue into October 12-13. Gong said the area, timing and amount of rain on the 11th could vary greatly depending on moisture inflow from the south and how it combines with an upper-level trough, and Yonhap reported that rain on the 12th and 13th depends on how fast a northern trough moves. Typhoons No. 28 and No. 29 are southeast of Japan, and the agency said they could affect the country depending on their position, urging people to check the latest forecasts. [ 1 , 2 , 3 , 4 ]
Why it matters
The forecast covers the Hangul Day holiday, which outlets described as good weather for outings on October 9. Rain with thunder, lightning and gusts is expected over the South Sea and Jeju waters, dry air inland raises wildfire risk, and forecasters said rain next week and the effect of two typhoons remain uncertain.
Key facts
- Mostly clear and mild weather is forecast nationwide for Hangul Day, October 9. [ 1 , 2 , 3 , 4 , 5 ]
- Rain is forecast mainly for the southern region and Jeju on October 10-11 as high pressure moves east and warm, humid air flows in from the south. [ 1 , 2 , 3 , 4 ]
- Forecast rainfall for October 10: Busan, Ulsan and South Gyeongsang 5-20mm; South Jeolla, North Gyeongsang and Jeju 5-10mm; North Jeolla under 5mm. [ 1 , 3 , 4 ]
- Heavy rain with thunder, lightning and gusts is possible over the South Sea and the waters off Jeju. [ 1 , 2 , 4 ]
- Temperatures are forecast 2-3 degrees Celsius above normal, with a day-night gap of 10-15 degrees. [ 1 , 2 , 3 , 4 ]
- Rain may continue into October 12-13. [ 1 , 2 , 3 , 4 ]
- Typhoons No. 28 and No. 29 southeast of Japan could affect the country, forecasters said. [ 1 , 2 ]
Confirmed by several sources
- Hangul Day, October 9, is forecast to be mostly clear nationwide. [ 1 , 2 , 3 , 4 , 5 ]
- Rain is expected mainly in the southern region and Jeju on October 10-11. [ 1 , 2 , 3 , 4 , 5 ]
- Forecast rainfall on October 10 is 5-20mm for Busan, Ulsan and South Gyeongsang, 5-10mm for South Jeolla, North Gyeongsang and Jeju, and under 5mm for North Jeolla. [ 1 , 3 , 4 ]
- Gwangju and Daegu are forecast to get 5-10mm on October 10. [ 1 , 4 ]
- Heavy rain with thunder, lightning and gusts is possible over the South Sea and Jeju waters. [ 1 , 2 , 4 ]
- Temperatures are forecast 2-3 degrees above normal. [ 1 , 2 , 3 ]
- Cold air from the north is not expected to move south during the holiday, so morning temperatures should not drop sharply. [ 1 , 2 , 4 ]
- The day-night temperature gap is forecast at 10-15 degrees. [ 1 , 2 , 4 ]
- Rain may continue into October 12-13. [ 3 , 4 ]
- Typhoons No. 28 and No. 29 southeast of Japan could affect South Korea. [ 1 , 2 ]
Still unclear
- Forecast temperature ranges for October 9 differ between outlets. Kyunghyang Shinmun reported lows of 7-16C and highs of 24-26C nationwide, while Hankook Ilbo reported lows of 6-16C and highs of 24-27C.
- Yonhap gave a low of 13C and a high of 25C for October 9, and 14-25C and 16-26C for October 10 and 11. Yonhap did not say which location these figures apply to.
- Where, when and how much rain will fall from October 11 onward. Forecasters said it depends on moisture inflow from the south, how the upper-level trough combines with it and how fast the northern trough moves.
- Whether typhoons No. 28 and No. 29 will affect South Korea. The weather agency said it depends on the typhoons' position and urged people to check the latest forecasts.
What local media are saying
Timeline, local time
- Yonhap publishes the weather agency's forecast for the Hangul Day holiday. [ 1 ]
- Newsis reports forecast analyst Gong Sang-min's comments from the weather agency's regular briefing. [ 2 ]
- Kyunghyang Shinmun reports the briefing, including rainfall and temperature forecasts. [ 3 ]
- Hankook Ilbo reports city temperature forecasts and rainfall figures for the south and Jeju. [ 4 ]