Weather will likely play an important role when you plan your trip to Ngawa Autonomous Prefecture, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 50°F, while the coldest months are January and December with an average of 20°F. The rainiest months in Ngawa Autonomous Prefecture are June, May, July, and September, with each month seeing an average of 7 inches of rainfall.