Xinjiang has a desert climate with very little rainfall. The best time to visit this province is in the autumn, when the days are long, the sky clear and temperatures more bearable than in the heat of the summer.
Situated in the heart of the desert and the furthest city in the world from the ocean, temperatures here tend to be very extreme. Winters are VERY cold and summers, extremely HOT. The average rainfall in Xinjiang is about 6 inches, although this does vary according to the region. Generally speaking, winter temperatures in northern Xinjiang are higher than those in the south of the province. In the coldest month (January), the average temperature is more than 20 degrees below. The average temperature in the so called ‘oven’ of Turpan in the hottest month (July) is above 33 degrees.
Winter here falls between November and April although there is a strong sun all year round. Realistically, the only way to prepare for travelling in this region is to be ready for all eventualities. Be SURE to take sunblock and always carry plenty of drinking water, even in the cooler months. Also take warmer clothes for the nights and winter here, when the drop in temperatures can be quite severe.