The ideal period to visit the Hiuen Tsang Memorial Hall in Nalanda is during the cooler months of October to March. During this timeframe, the weather in Bihar is relatively pleasant, with the cool breezes that accompany the winter season providing a comfortable environment for tourists. The daytime temperature ranges from about 20°C to 28°C, making it perfect for exploring the outdoor historical site without the discomfort of the intense heat that characterizes the region during the summer months.
It is especially advisable to avoid the summer season, from April to June, when the temperature can soar beyond 40°C, making outdoor activities arduous. The monsoon season, spanning from July to September, can be challenging as well, due to heavy rainfall which might disrupt travel plans. Therefore, planning your trip to coincide with the cultural festivals of Bihar, such as the Buddha Purnima in April/May or the Rajgir Mahotsav in October, can significantly enhance your visit, despite the potential for less-than-ideal weather during those times.