Get your walking in early (before 9am pst). Dogs can Sunburn and get heat exhaustion just like humans. The temperature of the ground is drastically different than air temperature. if it is 77 degrees outside then the concrete in the sun is closer to 105 degrees, red brick will be 115 degrees and the road in the sun 125 degrees. 60 seconds on hot surfaces at 125 degrees and above will cause burns and blistering of your pup's paws.