Generally speaking, Xinjiang has low rainfall and large temperature differences between day and night and season to season.
North Xinjiang, which has vast grasslands, forests, and high mountains, is wetter and cooler than southern Xinjiang (Kashgar, Turpan, Hetian, Aksu, etc.), which has huge deserts. The hottest place in Xinjiang is Turpan, where the temperature could be over 40°C (104°F) in July.
In Xinjiang, you could experience four seasons in one day. So, we suggest bringing a jacket and sweater besides t-shirts even in summertime.
