Bhutan in general is a cold weather country except few places like Punakha. In Thimphu, Paro and Punakha few Hotels are having AC facility. In the month of July and August, you may require AC in Thimphu and Paro, but for Punakha, you may require AC even in the month of April and May for additional comfort. So, please talk to NatureWings Bhutan expert regarding AC facilities in hotels before booking any Bhutan Tour from Bangalore.