Weather will likely play an important role when you plan your trip to Sekong, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 79°F, while the coldest months are January and December with an average of 72°F. The rainiest months in Sekong are September, July, August, and June, with each month seeing an average of 14 inches of rainfall.