The best time to visit Chengdu is generally during the spring, from March to June, and autumn, from September to November, when the weather is most temperate and pleasant for outdoor exploration. Spring is particularly beautiful as the city's parks and nearby mountains burst into bloom, and the giant pandas at the research base tend to be more active in the cooler, fresh air. Autumn offers crisp, clear days with comfortable temperatures and is the peak season for witnessing the stunning autumnal colors in surrounding areas like Jiuzhaigou and Mount Siguniang. While summer can be quite hot and humid with frequent rainfall, and winter is often characterized by a persistent damp chill and gray skies, the shoulder seasons provide the ideal conditions to enjoy Chengdu's famous teahouse culture and vibrant street food scene comfortably.