Nanjing Climate by Month
With a subtropical monsoon climate climate Nanjing can best be visited from March until May. During summer months (June-September) the average temperature is very high making Nanjing one of the hottest and humid cities in China. Also most rain is seen during summer months so best to avoid these months. September to November is a great time to visit if you wish to see the maple trees.
The graphs below provide an overview of the climate in Nanjing (Jiangsu), China. They present long-term patterns and averages of weather conditions over a 30-year period.