Weather is probably a major factor when you plan your trip to Tinsukia, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and June with an average temp of 81°F, while the coldest months are January and December with an average of 66°F. The rainiest months in Tinsukia are July, August, June, and September, with each month seeing an average of 20 inches of rainfall.