Weather: October is mild and cool. The average maximum daily temperature is 21 °C (70 °F), and the average minimum temperature is 15 °C (59 °F). Though it still rains about half of the days of the month, the rain is usually light. Total rainfall is little (35 mm total), and it is less humid than the previous month. Nighttime temperatures are several degrees lower than during the daytime, and you may feel a little cold at night.
Clothing: Wear long trousers and a light sweater or jacket. Bring a light coat if you go outdoors at night.
In October, with the little rain and fall colors, most of the attractions and places are at their best making it an ideal time to visit. Jiuzhaigou National Park is very colorful. The city gets a large number of tourists daily.
The Mid-Autumn Festival: The annual holiday is the second biggest traditional Chinese festival. It usually falls in September, but sometimes the public holiday is in early October. During the full moon and harvest festival, moon cakes featuring the fruits and nuts of the season are the favorite festival food.
During the holidays of October, the main market streets are lively places to shop and enjoy the local cuisine. Chengdu is known for its hot pot soups and red chili pepper chicken dishes called laziji and gongbao jiding (kung pao chicken). It will be a gastronomical memory of your trip.
See the Ancient Dujianyan Project: This ancient irrigation and river control project can be seen in a quick trip from Chengdu. It is one of the most favorite places for tourists in the Chengdu area, and it is only 60 kilometers or about 40 miles away from Chengdu.
It is still in use though it was built almost 2,300 years ago! It still irrigates a large area of Chengdu, and it has helped to turn the region into China's grain basket.
October is part of the main tourist season. The first day of the month is Chinese National Day, and many people have a week-long holiday. Visitors to Chengdu increase sharply during this period. Be sure to book your reservations in advance, as flights and train tickets are difficult to get. If the Mid-Autumn Festival falls in the month, this greatly increases tourism.