Hangzhou can be enjoyed throughout the year, but the best time to visit would be during spring (March to May) and autumn (September to November). During these seasons, the weather is mild and pleasant, making it ideal for exploring tourist attractions such as West Lake or hiking through scenic areas like Longjing Village. Spring brings blooming flowers and lush greenery, while autumn showcases beautiful foliage in vibrant colors. However, it's important to note that these periods are also popular among tourists, so advanced planning is recommended for securing accommodations at luxury hotels.