I have 2 dogs that will go out in the rain very grudgingly. I don’t think it has to do with anything other than they don’t like to get wet. They don’t like the feel of water pounding on them. For us, the harder the rain, the less likely they are to want to go out.o idea why some dogs don’t like it, especially if they are water loving dogs. Emma recently posted…My Review Has Been Hijacked Twice! mkob 08/25/2014, 4:59 am. The mud puddles are the best part of the rain.