Heavy rainfall and strong winds are expected throughout the weekend due to the effects of Typhoon Nakri.
Amid the harsh conditions, over 230 international and domestic flights in and out of Jeju International Airport have been cancelled and over one thousand households on the island were briefly without power.
Across the southern part of the country, there were numerous reports of property damage, broken traffic lights and fallen trees blocking streets.
Several festivals in the south of the country have also been cancelled or delayed.
The typhoon is traveling in a northward direction at a speed of roughly 15 kilometers per hour.
The mid-scale typhoon, packing winds of up to 25 meters per second, has tipped almost 870 millimeters of rain on Jeju's Mount Halla since it started to affect the area.
Waves as high as eight meters have been seen on Jeju Island.
And the choppy seas mean all passenger ferries to the island were suspended on Friday.
The typhoon is moving north to the central part of Korea as well as the capital Seoul.
Strong winds and rain are in the forecast for Sunday and early next week.
But the typhoon is expected to weaken as it passes over the western coast of the peninsula.
Kim Hyun-bin, Arirang News.