Silk Road Travel Information - Weather

Throughout July, August and September, the temperatures in Xi'an reach an average high of 38~C (100OF) and can be extremely humid. Visitors in the summer should wear light cotton garments and a hat to guard against sunburn.
In deference to Muslim sensibilities, long pants or skins should be worn by both sexes whenever possible. Visitors would do well to imitate the locals by staying in the shade around midday. Shoes should be solid and comfortable; even in the summer it is advisable to have thick-soled shoes, for the ground temperature can get extremely hot, especially at sites in the desert.
Winters are raw and severe.

During December and January, Xi'an averages around -4~ or -5~C (25~ or 23~F). The average temperature in Ur~mqi is -10~C (14~1:) and is considerably lower in the mountains and northern Junggar Basin. Woollen layers, a thick coat made of down or gortex, and warm boots are essential protection against the piercing winds and cold. Spring and autumn are the most comfortable seasons for travel, with April marking the beginning of the warm season in Xinjiang.

Travellers should also be prepared for dust storms, especially in Turpan, which often begin in the early afternoon and last for several hours: abrasive, blasting sands whipped up by strong winds, bringing all activity to a halt. The dust is particularly bad news for your camera. (Fuji colour film is widely available, but bring your own black and white.) It is important to carry a good torch, especially when visiting unlit Buddhist caves. A sturdy pair of sunglasses and water bottle are also highly recommended.