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 temperature of 27°C, while the coldest months are January and December, with an average of 21°C. The rainiest months in Kamalganj are May, June, August and July, with each month seeing an average of 414 mm of rainfall.