Wuxi belongs to sub-tropical maritime climate zone, with four distinct seasons. It is blessed with a mild climate, plentiful of rainfall and ample sunshine. The annual mean temperature is 15.5 degrees Centigrade, with a January average of 2.8 degrees Centigrade and a July average of 28 degrees Centigrade. The city has 250 frost and ice-free days. Rainfall occurs mainly in the summer, with average annual precipitation of 1,000 mm. Under the impact of complicated factors such as the Taihu Lake waters and hilly areas in southern Yixing, certain parts of Wuxi possess diversified climatic conditions good for growing a variety of crops in both the southern and northern parts.

Within the Wuxi area are the Huishan, Xishan, Junzhangshan,? Majishan and Tongguanshan mountains. The city is bisected by the Yangtze River and the Beijing-Hangzhou Grand Canal; and shares Taihu Lake with others. With so many rivers flowing through the plains, Wuxi has fertile land and is richly endowed with natural resources. Its major crops include rice, wheat, rape, fruit, cotton and silkworm cocoons. Its special products include Biluochun tea, Yangxian tea, three Taihu whites (silver fish, white fish and white shrimps), Taihu Dazha crabs, Yangtze River hilsa herrings, Wuxi spareribs, Yixing pottery, porcelain, clay figures, and Wuxi embroidery. All these combine to make Wuxi a city known in China as "and of rice and fish in areas south of the Yangtze River" and? "right pearl shining over Taihu Lake".