Chongqing is a megacity in southwest China. Administratively, it is one of the four municipalities under the direct administration of central government of the People's Republic of China (the other three are Beijing, Shanghai and Tianjin), and the only such municipality located far away from the coast. The municipality of Chongqing, which is around the size of Austria, includes the city of Chongqing and various non-connected cities. As the Chongqing municipality government directly administers the city of Chongqing, as well as rural counties, and other cities not connected to the city of Chongqing, Chongqing municipality can technically claim to be the largest city proper in the world, even though this is due to a classification technicality and not because it is actually the world's largest urban area.
Chongqing is situated at the transitional area between the Tibetan Plateau and the plain on the middle and lower reaches of the Yangtze River in the sub-tropical climate zone often swept by moist monsoons. It often rains at night in late spring and early summer, and thus the city is famous for its "night rain in the Ba Mountains", as described by poems throughout Chinese history including the famous Written on a Rainy Night-A Letter to the North by Li Shangyin. The municipality reaches a maximum width of 470 kilometres (290 mi) from east to west, and a maximum length of 450 km (280 mi) from north to south. It borders the following provinces: Hubei in the east, Hunan in the southeast, Guizhou in the south, Sichuan in the west and northwest, and Shaanxi to the north in its northeast corner.
Chongqing has a humid subtropical climate, bordering on a monsoonal humid subtropical climate and for most of the year experiences very high relative humidity, with all months above 75%. Known as one of the "Three Furnaces" of the Yangtze river, along with Wuhan and Nanjing, its summers are long and among the hottest and most humid in China, with highs of 33 to 34 °C (91 to 93 °F) in July and August in the urban area. Winters are short and somewhat mild, but damp and overcast. The city's location in the Sichuan Basin causes it to have one of the lowest annual sunshine totals nationally, at only 1,055 hours, lower than much of Northern Europe; the monthly percent possible sunshine in the city proper ranges from a mere 8% in December and January to 48% in August. Extremes since 1951 have ranged from −1.8 °C (29 °F) on 15 December 1975 (unofficial record of −2.5 °C (27 °F) was set on 8 February 1943) to 43.0 °C (109 °F) on 15 August 2006 (unofficial record of 44.0 °C (111 °F) was set on 8 and 9 August 1933).
More introductions to Chongqing please visit: https://en.wikipedia.org/wiki/Chongqing