Dali in May

March through May brings perfect weather — clear mountain views, blooming azaleas on Cangshan, and comfortable cycling temperatures around Erhai Lake. The spring crowds haven't hit yet, so you'll actually enjoy those sunrise photos without fighting for space. Fall (September to November) offers similar conditions with harvest season adding golden rice terraces to the scenery. Avoid July and August unless you enjoy sharing ancient streets with half of China's university students. The rain doesn't stop, and visibility drops to maybe 50 meters on cloudy days. Winter brings clear skies but freezing nights — those traditional guesthouses don't heat well. December through February works if you're tough, but pack layers. The shoulder seasons of late spring and early fall give you the best of everything: decent weather, manageable crowds, and lower accommodation prices.