<P> The winter in Seoul is controlled by the large Siberian high pressure system ( the Asiatic high ) , which results in predominantly cold , dry north - westerly winds . The influence of the Siberian high leads to significantly colder winter temperatures than would be expected at this latitude . About every 4 to 6 days a low - pressure trough will move through South Korea , bringing with it cloudiness and light precipitation . The amount of precipitation locally depends mostly on the elevation of the station and the length of time that the air has been over the Yellow Sea . Maximum snowfall occurs over the northwest coast , which is the most exposed to the northwesterly flow , and in the mountain areas . Normally less than 10 percent of the annual precipitation falls during the winter . Frequently the weather is cloudless , clear , and dry , except for the southwestern region of the peninsula . The mean January temperature in Seoul is - 2.4 ° C ( 27 ° F ) . January , is the coldest month in Seoul , often with the lowest temperatures , almost always dropping below - 10 ° C ( 14 ° F ) , and sometimes below - 15 ° C ( 5 ° F ) . </P>
<P> The winter in Seoul is controlled by the large Siberian high pressure system ( the Asiatic high ) , which results in predominantly cold , dry north - westerly winds . The influence of the Siberian high leads to significantly colder winter temperatures than would be expected at this latitude . About every 4 to 6 days a low - pressure trough will move through South Korea , bringing with it cloudiness and light precipitation . The amount of precipitation locally depends mostly on the elevation of the station and the length of time that the air has been over the Yellow Sea . Maximum snowfall occurs over the northwest coast , which is the most exposed to the northwesterly flow , and in the mountain areas . Normally less than 10 percent of the annual precipitation falls during the winter . Frequently the weather is cloudless , clear , and dry , except for the southwestern region of the peninsula . The mean January temperature in Seoul is - 2.4 ° C ( 27 ° F ) . January , is the coldest month in Seoul , often with the lowest temperatures , almost always dropping below - 10 ° C ( 14 ° F ) , and sometimes below - 15 ° C ( 5 ° F ) . </P>
when does it get cold in south korea
when does it get cold in south korea
January
January