When to Visit Tibet
Lhasa /Shigatse /Lhatse /Tingri /Nyalan: Along the Friendship highway is basically in good conditions year around. But from December to February, the thawed road could make some trouble. Try to avoid August - landslide could happen in the rainy season.
Mt. Everest Base Camps Area: Early May and early October are the best time to visit Mt. Everest Base Camps. Due to the clear weather, you have great chance to see Mt. Everest Base Camps's true face (if you are lucky). From December to February, you'd better not to go to this area because it is too cold - except you are real Great Adventure People.
Ali (Mt.Kailash): Even without climate restrictions, this area is already inhospitable. Big rain and snow could make the journey worse. However, for those determined tourists, the appropriate time is May, June, July, September and October.
Eastern Tibet: Don't go to this area in July or August (the rainy season) because the rain could ruin the road, and make terrible landslides. In winter, the road could be frozen.
Northern Tibet: With the average altitude of 4,500m, this area offers very limited time for tourists. Summer (July to August) is the prime time to enjoy the great plain in northern Tib