1950 In May, Wendeng Special Zone was established, governing eight counties including Weihai, Rongcheng, Wendeng and Kunyu.
1February, 956, Wendeng area was abolished, and now Weihai area belongs to Laiyang area.
1958 10, Laiyang area was changed to Yantai area.
1February, 967, Yantai area was renamed Yantai area, and now Weihai area belongs to it.
1August, 983, Yantai area was abolished and Yantai city (prefecture level) was established. Weihai City was changed to a county-level city under the provincial jurisdiction and managed by Yantai City.
1June 98715th Weihai was promoted to a prefecture-level city.
Weihai is located in the east of China, at the eastern end of Shandong Peninsula. It is bordered by the Yellow Sea in the north, east and south, and Yantai in the west.
Weihai is a hilly area with gentle topography and gentle valley width and slope. Except for Taifeng Peak, the main peak of Kunyu Mountain, which is 923 meters above sea level, other mountainous hills in the area are all below 700 meters, mostly undulating hills with a slope of 200 to 300 meters below 25 degrees. The mountain is mainly composed of granodiorite, and the surface of the mountain base is mostly brown soil formed by weathering residual, with thin covering soil but good soil permeability. How open and flat the valleys in the mountains are; The plains are mostly coastal plains and piedmont inclined plains. Among them, low mountains account for 15.77% of the total land area, hills account for 52.38%, plains account for 27.56%, islands account for 0.28%, and beaches account for 4.0 1%. The river network is dense, the river is unobstructed and the surface drainage is good. The central part is relatively high, the mountains are east-west, and the water system flows from the back of the mountain to the north and south into the sea. The north and southeast are surrounded by the sea on three sides, and the coast type belongs to harbor coast, with winding coastline, staggered headlands and numerous harbors and islands.
Weihai belongs to temperate monsoon climate, with obvious seasonal changes and monsoon advance and retreat. Compared with inland areas at the same latitude, it has the characteristics of abundant rainfall, moderate annual temperature and mild climate. The continental degree of Weihai is 54. 1%. Being close to the Yellow Sea and regulated by the ocean, Weihai has the characteristics of maritime climate, such as cool in Leng Xia in spring, warm in autumn and warm in winter, small temperature difference between day and night, long frost-free period, strong wind and high humidity.