Seoul experienced the first frost of the year on Sunday, a week earlier than last October and 17 days earlier than the average date, according to the Korean Meteorological Administration (KMA).
A wharf in Incheon is frozen over on Sunday as a cold wave advisory was issued across the nation. Wind-chill temperatures in Incheon plummeted to minus 15.4 degrees Celsius (4.28 degrees Fahrenheit) on Sunday.
The surface of the Han River is frozen near Gwangnaru Park in Seoul as the weather agency issued a cold wave advisory for Seoul and Gyeonggi on Tuesday. The Korea Meteorological Administration forecast that it will get colder through Friday.
Ahead of this winter's cold wave, Lotte Mart said it offers customer various winter products such as earmuffs and fur shoes at up to 50 percent off through Jan. 13.
Icicles hang on a branch over the Han River near Yeouido, western Seoul, on Monday as the weather agency issued the first cold wave advisory this season. The mercury dipped down to minus 9.7 degrees Celsius (14.5 degrees Fahrenheit) in Seoul Monday.