Shanghai is the largest Chinese city by population and the largest city proper by population in the world.
It is one of the four direct-controlled municipalities, with a total population of near 24 million as of 2013.
It is a global financial center,and a transport hub with the world's busiest container port.Located in the Yangtze River Delta in East China, Shanghai sits at the mouth of the Yangtze River in the middle portion of the Chinese coast. The municipality borders the provinces of Jiangsu and Zhejiang to the north, south and west, and is bounded to the east by the East China Sea.
For centuries a major administrative, shipping, and trading town, Shanghai grew in importance in the 19th century due to European recognition of its favorable port location and economic potential. The city was one of five opened to foreign trade following the British victory over China in the First Opium War while the subsequent 1842 Treaty of Nanking and 1844 Treaty of Whampoa allowed the establishment of the Shanghai International Settlement and the French Concession. The city then flourished as a center of commerce between east and west, and became the undisputed financial hub of the Asia Pacific in the 1930s.
However, with the Communist Party takeover of the mainland in 1949, trade was reoriented to focus on socialist countries, and the city's global influence declined. In the 1990s, the economic reforms introduced by Deng Xiaoping resulted in an intense re-development of the city, aiding the return of finance and foreign investment to the city.
Shanghai is a popular tourist destination renowned for its historical landmarks such as The Bund, City God Temple and Yu Garden, as well as the extensive Lujiazui skyline and major museums including the Shanghai Museum and the China Art Museum. It has been described as the "showpiece" of the booming economy of mainland China.
Shanghai has a humid subtropical climate (K?ppenCfa) and experiences four distinct seasons. Winters are chilly and damp, and cold northwesterly winds from Siberia can cause nighttime temperatures to drop below freezing, although most years there are only one or two days of snowfall. Summers are hot and humid, with an average of 8.7 days exceeding 35 °C (95 °F) annually; occasional downpours or freak thunderstorms can be expected. The city is also susceptible to typhoons in summer and the beginning of autumn, none of which in recent years has caused considerable damage. The most pleasant seasons are spring, although changeable and often rainy, and autumn, which is generally sunny and dry. The city averages 4.2 °C (39.6 °F) in January and 27.9 °C (82.2 °F) in July, for an annual mean of 16.1 °C (61.0 °F). With monthly percent possible sunshine ranging from 34% in March to 54% in August, the city receives 1,895 hours of bright sunshine annually. Extreme temperatures within the municipality range from 40.8 °C (105 °F) on 7 August 2013, down to ?12.1 °C (10 °F) on 19 January 1893.
Study more about Shanghai City: http://www.shanghai.gov.cn/shanghai/node27118/index.html.