Why is Jiangxi so hot?

Jiangxi is so hot, mainly due to the influence of the western Pacific subtropical high.

Since September, 2023, the subtropical high in the western Pacific has been strengthened, extending to the west and lifting to the north, and the main theme is obviously northward, and the area is too large. Under its control, it has been sunny for several days, with strong solar radiation and continuous high temperature and hot summer weather. Jiangxi is located in the subtropical zone, which is deeply influenced by subtropical high in summer. Coupled with the prevailing southeast monsoon, it is hot and rainy, followed by Chinese mainland in the depths of Jiangxi, so it is particularly hot in summer and autumn.

The climate of Jiangxi Province belongs to subtropical warm and humid monsoon climate, with an annual average temperature of about 16.3-25℃, which generally increases from north to south. The annual average temperature in northeast Jiangxi, northwest Jiangxi and Poyang Lake Plain is 16.3- 17.5℃, and the annual average temperature in Gannan Basin is 19.0-25℃. The summer is long, and the average temperature in July is 28.0-29.8℃ except for the surrounding mountainous areas in the province.

Topography of Jiangxi province

The geological structure of Jiangxi province is bounded by Jinjiang-Xinjiang line. The northern part belongs to Jiangnan uplift of Yangtze paraplatform, and the southern part belongs to South China fold system. The late Caledonian movement at the end of Silurian brought them together, and then they were reformed many times by Indosinian movement, Yanshan movement and Himalayan movement, forming a series of northeast-southwest tectonic belts. A large number of granites invaded in the south, and red clastic rocks from Cretaceous to Paleogene were deposited in the basin, including gypsum and rocks.

Geomorphologically, it belongs to the main part of Jiangnan hills. The province is surrounded by mountains in the east, west and south, with hills and valley plains in the middle and Poyang Lake plain in the north. Poyang Lake Plain and Hubei Lake Plain are both subsidence areas in the middle and lower reaches of the Yangtze River, which are formed by siltation of the Yangtze River and five major rivers in the province. It is narrow in the north and wide in the south, covering an area of nearly 20,000 square kilometers. The surface is mainly covered with laterite and river alluvium, and laterite has been cut and slightly undulating.

The above contents refer to Baidu Encyclopedia-Jiangxi Province.