![[Weather] Strong rain in the southern part of Jeju on Saturday… Beware of strong winds and swells](/api/img?u=https%3A%2F%2Fimg.yna.co.kr%2Fphoto%2Fyna%2FYH%2F2026%2F10%2F18%2FPYH2026101806420001300_P2.jpg&w=1200&q=72&f=webp)
AI-generated summary
This is a weather information article written based on the Korea Meteorological Administration's 24-day weather forecast.
On Saturday the 24th, it will be mostly cloudy across the country, with heavy rain falling mainly in the southern region and Jeju Island.
The southern coast of Jeonnam, Busan, Ulsan, and the southern coast of Gyeongnam will see rain of around 20 mm per hour from morning to late afternoon, and Jeju Island may see up to 30 mm of rain per hour until morning.
Rain will fall on the east coast and mountainous areas of southern Gangwon between morning and afternoon, and in the southeastern Chungcheongnam-do and central and southern parts of Chungcheongbuk-do in the afternoon.
In the rest of the Chungcheong area, there will be places where raindrops of less than 0.1 mm will fall.
The expected precipitation is around 5 mm on the east coast and mountainous areas of southern Gangwon, and 5 to 10 mm in Daejeon, southeastern Chungcheongnam-do, and central and southern Chungcheongbuk-do.
The lowest morning temperature is expected to be 8 to 17 degrees, and the highest daytime temperature is expected to be 16 to 21 degrees.
Meanwhile, in some areas, strong winds will blow and sea waves will rise high.
Winds will blow very strongly at 30 to 65 km/h (8 to 18 m/s) in the western South Sea, the northern coast of Jeju Island, and the eastern southern sea from dawn, so you must pay attention to facility management and safety.
Sea waves will rise to 0.5 to 1.5 m in the East Sea, West Sea, and South Sea.
The wave height of the deep inner sea (the sea within about 200 km of the coastline) is expected to be 0.5 to 3.0 m in the East Sea and West Sea, and 1.0 to 3.5 m in the South Sea.
On the east coast until the morning, and on the south coast and Jeju Island coast for the time being, high waves caused by swells will be strong in some places, washing up on white sandy beaches or over seawalls or breakwaters, so you should refrain from approaching the coast.
Below is the regional weather forecast for the 24th.
[morning, afternoon] (lowest to highest temperature) <probability of precipitation in the morning and afternoon>
▲ Seoul: [A lot of clouds, a lot of clouds] (13∼21) <20, 20>
▲ Incheon: [Many clouds, clear] (14~21) <20, 10>
▲ Suwon: [A lot of clouds, a lot of clouds] (14∼21) <20, 20>
▲ Chuncheon: [A lot of clouds, a lot of clouds] (10~20) <20, 20>
▲ Gangneung: [Cloudy, many clouds] (13∼20) <30, 20>
▲ Cheongju: [Cloudy, cloudy and rainy at times] (14~20) <40, 60>
▲ Daejeon: [Cloudy, cloudy and sometimes rain] (13~19) <30, 60>
▲ Sejong: [Cloudy, cloudy] (13∼19) <30, 30>
▲ Jeonju: [Cloudy and rainy, cloudy and rainy at times] (14~20) <60, 60>
▲ Gwangju: [Cloudy and rainy at times, cloudy and rainy at times] (14~19) <60, 60>
▲ Daegu: [Cloudy and rain, cloudy and rain] (14~19) <60, 60>
▲ Busan: [Cloudy and rain, cloudy and rain] (17~19) <80, 80>
▲ Ulsan: [Cloudy and rain, cloudy and rain] (16∼19) <80, 80>
▲ Changwon: [Cloudy and rain, cloudy and rain] (16∼19) <80, 80>
▲ Jeju: [Cloudy and rain, cloudy and rain] (19~22) <70, 70>
![[Weather] Heavy rain in the southern region on Sunday… More than 200 mm in three days in Jeju mountainous area](/api/img?u=https%3A%2F%2Fimg.yna.co.kr%2Fphoto%2Fyna%2FYH%2F2026%2F10%2F24%2FPYH2026102402700005600_P2.jpg&w=320&q=72&f=webp)
On Sunday, the 25th, it was mostly cloudy across the country, and heavy rain was forecast in the southern region and Jeju Island. Heavy rain of up to 200 mm or more is expected to fall in the mountainous areas of Jeju Island.

While Typhoon No. 30 'Champi' was moving north, heavy rain and strong winds fell on Jeju Island for two days, causing flooding damage, flight cancellations and delays, and passenger ship restrictions. Additional rain of 80 to 150 mm was forecast until the day after tomorrow morning.

The Ministry of Public Administration and Security raised the storm and flood disaster crisis warning for Jeju and the southern coastal region to 'caution' and dispatched an on-site situation management officer as Typhoon No. 30 'Champi' moved north.

As of 8 p.m. on the 23rd, the Korea Meteorological Administration announced that a strong wind advisory was in effect for the Jeju Island mountainous region, Seogwipo City, and some areas of Jeju City, and that a heavy rain advisory was maintained for the Jeju Island mountainous region, the mid-mountainous area of Seogwipo City, and the southern part of Seogwipo City.

Heavy rain, strong winds, and swell waves are expected throughout the weekend due to the influence of Typhoon No. 30 'Champi' in Jeju and the southern region. Heavy rain of up to 250 mm or more is expected to fall in mountainous areas of Jeju.

On the afternoon of the 23rd, the Korea Meteorological Administration announced that a heavy rain advisory was in effect for the mountainous areas of Jeju Island and the Seogwipo city area, and that a wind advisory was maintained for all waters off Jeju Island.