The best time to go to Bihar Sharif is during the cooler, drier months of October to March.
This period avoids the intense heat and humidity of summer, as well as the heavy monsoon rains. The weather is generally pleasant, with comfortable temperatures making it ideal for exploring the local sights and engaging in outdoor activities.
For those interested in historical sites, visiting between October and February is particularly good. You can comfortably explore attractions like the ancient ruins of Nalanda University and the Pawapuri Jain Temple without the discomfort of extreme weather.