Weather is probably a major factor when you plan your trip to Alipurduar, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May with an average temp of 80°F, while the coldest months are January and December with an average of 68°F. The rainiest months in Alipurduar are July, June, August, and September, with each month seeing an average of 29 inches of rainfall.