The months of May and October are the best time to travel the Silk Road. During May, the average temperature along the route is around 15C. The scenery is most beautiful during this month. The accumulated winter snow on the tableland is melting & the grass is turning green. though may is peak season. but if you want to see snow then you can visit from nov end till march end. but winter is freezing cold.
October to March is an ideal time to visit silk route. Though weather will be cold, still you get to view the lovely snow capped peaks. Try to visit before December and after February for due to snowfall the route is likely to get closed.