Weather will likely play an important role when you plan your trip to Namnae-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 74°F, while the coldest months are January and February with an average of 39°F. The rainiest months in Namnae-ri are July, August, June, and September, with each month seeing an average of 10 inches of rainfall.