In short yes they are. Very much so. In fact, Coleman tents are famous for the trade marked and patented WeatherTec system. They have carried out rigorous and extensive tests to prove just how water proof their range really is. The extent to which a tent is waterproof or not is measured by something called a hydrostatic head. What this means in everyday terms is the amount of water in millimetres that a fabric is able to hold before it allows a drop of water to seep through.\r