Do I need to prepare thick clothes when going to Jiuzhaigou at the end of September?

If you go to Jiuzhaigou at the end of September, you still need to prepare a jacket, because the weather and temperature vary greatly.

Not too thick, long clothes and coats

Need, the temperature difference between day and night is very big here, bring a thick coat to wear at night, if the sun is out during the day, it will be very hot again. It is about 25°C during the day and only about 15°C at night