The largest city in China will impress you at any time of year with its futuristic architecture, fantastic food, and historical buildings. The best time to visit Shanghai is from May to November since winters are too chilly to enjoy the outdoors. Summers in Shanghai are hot and rainy; however, they are also full of events and culinary delights. Early June is an excellent time to come due to the famous Dragon Boat Festival, often called the Duanwu Festival. It's also the season for yang mei and other fruits and berries. Don't forget to try local specialities—crayfish or xiaolongxia and bullfrog.