The temperature in September is cooler than in July and August. The average temperature is from 15 °C (59 °F) to 29 °C (84.2 °F), making mornings and nights cool and mild, and days can be hot. It is sunny most of the time, but it rains more frequently than July and August. When you are outside, using sunscreen is critical. A T-shirt or a dress is good for the daytimes, and a light jacket is crucial at night to keep the colds away.
September marks the beginning of autumn. The leaves turn yellow and fall on the ground. During this month, many tourists travel to Changsha to appreciate the beautiful autumn scenery on Juzi Island.