A strong cold wave will hit Korea.
The temperature will be down to -10C on 15 Dec 2010.
15 Dec(Wednesday) : Low -10 ºC / High -4 ºC
16 Dec(Thursday) : Low – 9 ºC /High -2 ºC
When strong cold wave sweep the whole country, Catching a taxi around midnight is really really hard, You better use public traffic and check running time of public traffic. Also do not drink a lot, Cold will be freeze you.
Keep your warm, be with padding jumper, gloves and neck warmer.
If you want to know more detail of weather, access http://www.weather.com and search Seoul.