Planning for the weather is a good way to make your trip to Tinsukia relaxing and enjoyable, especially when you’re splurging. 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.