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 temperature of 27°C, while the coldest months are January and December, with an average of 21°C. The rainiest months in Cooch Behar are June, July, August and September, with each month seeing an average of 745 mm of rainfall.