If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Tinsukia: 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.