Many cat owners shave their cats during the sweltering heat, and some even do so during the cold winter months. Some owners are forced to do so because their cats have skin conditions or require surgery, while others feel that the fur helps dissipate heat in the hot weather. Whatever the reason for shaving your cat, reading this article will definitely be helpful. 
Do cats need to be shaved under normal circumstances?
The answer is: No.
Based on consultations with experts and veterinarians, cats don't dissipate heat through sweating like humans; less than one percent of their heat is lost through the skin. While cats' temperature tolerance is similar to humans—they feel hot when we do—their methods of heat dissipation are fundamentally different. Strictly speaking, in hot weather, a cat's primary response should be heat protection, followed by heat dissipation. Therefore, shaving a cat won't make it feel cold unless it has a skin condition or its fur is matted. This principle applies to all long-haired animals, including dogs.
