Weather is probably a major factor when you plan your trip to Sarnath, and keep in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually May and April with an average temp of 91°F, while the coldest months are January and December with an average of 68°F. The rainiest months in Sarnath are July, August, September, and June, with each month seeing an average of 10 inches of rainfall.