The largest city in the western half of the People's Republic of China, Ürümqi has earned a place in the Guinness Book of Records as the most remote city from any sea in the world. It is about 1,400 miles (2,500 km) from the nearest coastline as Ürümqi is the closest major city to the Eurasian Pole of inaccessibility, although Karamay and Altay, both in Xinjiang, are closer. The city has an area of 10,989 km². The average elevation is 800 meters.
In Ürümqi a semi-arid climate (Köppen climate classification BSk) prevails. Ürümqi experiences very large differences between summer and winter, with hot summers, with an average July temperature high of 30.1 °C (86.2 °F), and cold winters, with an average January high of −7.4 °C (18.7 °F). The annual average temperature is 7.4 °C (45.3 °F). Ürümqi is semi-arid, with its summers slightly wetter than its winters. Its annual precipitation is about 290 millimetres (11.4 in).