Igloo tents are best known for their dome shape and their marketing includes how well they stand through any weather disturbance like rain. The degree of waterproofness of such tents however largely varies depending on the materials used and the construction quality. The majority of igloo tents uses a water resistant synthetic fabric but the leaks are taken care of as all the seams are sealed. They are therefore extremely effective against light to medium rain, although it is advisable to check the manufacturer’s specs for use under heavy rainfall. You definitely will not regret spending extra on a good quality igloo since this will enable you to stay dry and comfortable during your outdoor adventures.