Fresh, Cool Water
It is essential that you keep fresh, cool water available to your dog at all times. In hot weather, this is even more crucial. Make sure you keep the water dish in a shady location and change the water frequently. To constantly keep fresh water available outdoors, consider installing a watering system that hooks up to a faucet. These systems are designed to provide water as needed and are usually triggered by motion or a specific action.
Shelter from the Sun
Your dog might enjoy a little sunbathing, but she ultimately needs a cool, shady spot to relax. Prolonged sun exposure not only leads to heat exhaustion, it can also cause sunburn. Yes, dogs can get sunburned too. While sunscreen is available for dogs, it is not ideal. The best thing is to offer shelter. Shade from trees is nice, but not perfect. An actual structure is better. Consider getting an insulated dog house, but make sure it is large and well-ventilated. Alternatively, you might put up an open-air tent or canopy. The addition of a fan will help further cool things down. If possible, put the shelter in a shady area to keep it extra-cool. Of course, the most ideal shelter is in your home. If possible, install a doggie door to allow indoor access.
Pools for Cooling
If your dog loves water, then a large tub or kiddie pool (molded plastic, not inflatable) might be a great addition to your yard. You can find tubs or pools at most home stores. Many dogs enjoy playing and lounging in the cool water. Also, keep the pool in a shady spot and change the water frequently. Do not leave the pool full when not in use, as it may attract mosquitoes. Instead of a pool, you might also try running a sprinkler to see if your dog likes it. however, most dogs prefer a pool to a sprinkler.
Cooling Dog Beds
As mentioned before, your dog needs a cool, shady place to relax. While a dog bed is nice and soft, it might also be too warm. this is why many people notice their dogs prefer to lie on tile or concrete floors when it's hot out. However, a cooling dog bed can offer the comfort and softness of a typical dog bed with the coolness your dog craves. Cooling dog beds often use a gel-like material or simply water to keep the bed feeling cool. These beds are especially great for senior dogs as an alternative for hard floors.