Planning for the weather is a good way to make your trip to Cooch Behar 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 Cooch Behar are June, July, August, and September, with each month seeing an average of 29 inches of rainfall.