Planning for the weather is a good way to make your trip to Kamalganj relaxing and enjoyable, especially when you’re splurging. The hottest months are usually April and March with an average temp of 81°F, while the coldest months are January and December with an average of 69°F. The rainiest months in Kamalganj are May, June, August, and July, with each month seeing an average of 16 inches of rainfall.