Latitudinally, Guǎngxī approximates balmy Florida in the USA, but don’t just pack a bathing suit. Tropical heat and humidity are the norm (average temperatures range from 13°C in January to 28°C in August), but a north/south distinction exists. Northern Guǎngxī rises gradually into the Yúnnán plateau and, though still subtropical, highlands here are much more temperate, even in summer; frost and snow are not unheard of in winter.
Much of the annual 1500mm to 2000mm of rain falls from June to August; less heavy (but more constant) early rains in March bring dismal, cold damp. Note that coastal regions can get hit by typhoons starting in summer. May, September and October are generally the best times to visit.