Chongqing, also known as Mountain City and Jiangcheng City, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a megacity, one of the important national central cities approved by the State Council, an economic center in the upper reaches of the Yangtze River, a core city in the Chengdu-Chongqing twin-city economic circle, an important advanced manufacturing center in China, a financial center in the west, an international comprehensive transportation hub and an international gateway hub.

Located in the southwest of China, Chongqing is the logistics center of economy, finance, science and technology, shipping and commerce in the upper reaches of the Yangtze River and the national logistics hub. An important strategic fulcrum for the development of the western region, an important connection point between the "Belt and Road" and the Yangtze River Economic Belt, and an inland open highland; There are world cultural heritage Dazu stone carving, world natural heritage Wulong karst and Nanchuan Jinfo Mountain and other landscapes.

Chongqing climate

The annual average relative humidity in Chongqing is 70% ~ 80%, which is a high humidity area in China. The sunshine hours in the whole year are 65,438+0,000 ~ 65,438+0,400 hours, and the sunshine percentage is only 25% ~ 35%, which is one of the regions with the least sunshine in China, with less sunshine in winter and spring, accounting for only about 35% of the whole year.

The main climatic characteristics can be summarized as follows: warm winter and early spring, hot summer and cool autumn, four distinct seasons and long frost-free period; The air is humid and the precipitation is abundant; Weak solar radiation and short sunshine time; There are more clouds and less frost and snow; Light and warm water are in the same season, with remarkable stereoscopic climate, abundant climatic resources and frequent meteorological disasters.

Under the dual effects of topography and climate, Chongqing is particularly rainy at night at the turn of spring and summer, so it is called "late rain" and has a landscape garden; It is foggy and is known as "Fog City Chongqing" and "Fog City". The average annual foggy day is 104 days, while the average annual foggy day in London, England, which is known as the foggy capital of the world, is only 94 days, and that in Tokyo, Japan, which is the foggy capital of the Far East, is only 55 days.