Shaving your dog’s hair in summer will not necessarily cool down the dog. If you shave too short, the sun will directly shine on the dog’s skin, which will make the dog hotter. Therefore, if you have a short-haired dog, you do not need to shave it in summer. If it is a long-haired dog, the hair can be shaved shorter, but not bald, as this will help the dog cool down. It is best not to take your dog out during the hottest time in summer. Let your dog drink plenty of water to avoid heat stroke.