Planning for the weather is a good way to make your trip to Agartala relaxing and enjoyable, especially when you're splurging. The hottest months are usually April and March with an average temp of 82°F, while the coldest months are January and December with an average of 70°F. The rainiest months in Agartala are May, June, July, and August, with each month seeing an average of 14 inches of rainfall.