Weather is probably a major factor when you plan your trip to Sehwa-ri, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July with an average temp of 76°F, while the coldest months are January and February with an average of 47°F. The rainiest months in Sehwa-ri are September, July, August, and June, with each month seeing an average of 11 inches of rainfall.