Yangshuo has over 300 climbing routes ranging in difficulty from 5.6 to 5.13. There is a lively climbing scene in town, so experienced climbers will have no problem finding a partner, just ask in the climbing places and they should know other climbing travelers you can hook up with. For beginners and climbers traveling without their own equipment several climbing companies offer equipment rental, one/multi-day trips and places to hang out chatting about potential routes or to find a partner.
Yangshuo is a fairly tropical environment. The best time to come to Yangshuo for climbing are in the fall, winter and even the summer, but climbing is very possible year round. In general, August to November are the best months for climbing here (as well as the month of March in the spring), but if you like colder weather climbing, December through February are good ... and for those of you who like warmer weather, May through July. Climbing in the rain is possible in several areas, even in the biggest downpours.