Weather will likely play an important role when you plan your trip to Na Bo Kham, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and March with an average temp of 84°F, while the coldest months are January and December with an average of 75°F. The rainiest months in Na Bo Kham are September, August, July, and May, with each month seeing an average of 8 inches of rainfall.