I live on Long Island and it gets hot here in the summer too. I know for my babies the hair is just too much. They pant and just lay around. I give them all a shave down in the summer and they love it. Not too short because I don't want them to get sunburn. I just make it about 1/2 inch or so. I immediatly notice the difference. I also make sure they have plenty of cool water and a nice cool place to lay. I put a big comforter out in the backyard for them when I'm out there so they don't have to lay on the buggy grass