Dogs handle heat very differently than people do. They do not sweat the way we do, relying mostly on panting and the small sweat glands in their paw pads to release heat, which makes them far more vulnerable to overheating than most owners realize during a hot summer.
Below are 10 real ways to keep your dog cool in summer, along with the warning signs of heatstroke every owner should be able to recognize immediately.
Key Takeaways
- Dogs cool down primarily through panting, not sweating, which makes humidity especially dangerous.
- Walking during early morning or evening hours protects both body temperature and sensitive paw pads.
- A dog should never be left in a parked car, even briefly, even with windows cracked.
- Brachycephalic, senior, overweight, and thick coated dogs face a higher risk of overheating.
- Recognizing early heatstroke signs and acting immediately can be genuinely lifesaving.
Why Dogs Struggle With Heat More Than People Realize
Dogs have sweat glands, but only in their paw pads and nose, a small surface area that does very little to cool the whole body. Their primary cooling method is panting, moving air across a wet tongue to release heat through evaporation, which is far less efficient than human sweating.
This becomes especially dangerous on humid days, since panting relies on evaporation, and high humidity slows that process down significantly. A dog can struggle to cool down even in temperatures that do not feel unbearable to a person, which is exactly why understanding these differences matters so much during summer months.
1. Keep Fresh, Cool Water Available at All Times
Hydration is the single most important factor in preventing overheating. Place multiple water bowls around the house and yard, and refill them throughout the day rather than relying on a single bowl that can run low or warm up quickly in the heat.
Adding a few ice cubes to the water bowl can help keep it cooler for longer, and a collapsible travel bowl makes it easy to offer water consistently during outdoor activities away from home.
- Place multiple water bowls around the house and outdoor areas
- Refill water frequently rather than letting it sit and warm up
- Ice cubes in the bowl help keep water cooler for longer stretches
- Carry a collapsible bowl for walks and outings away from home
2. Shift Walks to Early Morning or Evening
Midday sun brings both the highest air temperature and the hottest pavement, a combination that puts real strain on a dog’s body and paws at the same time. Shifting walk times to early morning or later in the evening avoids peak heat almost entirely.
On especially hot or humid days, it is worth shortening the walk itself or skipping it altogether in favor of indoor activity, rather than pushing through a full length walk during dangerous conditions.
- Aim for walks in the early morning or after the sun starts setting
- Midday heat combines high air temperature with the hottest pavement
- Shorten or skip walks entirely during extreme heat or humidity
- Indoor games are a solid substitute on days when outdoor walks are not safe
3. Test Pavement Before Walking on It
Asphalt and concrete absorb heat throughout the day and can reach temperatures high enough to burn sensitive paw pads, even when the air itself does not feel unbearably hot. This is one of the most commonly overlooked summer hazards.
A simple test works well here, press the back of your hand against the pavement and hold it for about seven seconds. If it is too hot for your hand to comfortably tolerate, it is too hot for your dog’s paws as well.
- Pavement can reach dangerously high temperatures even on moderately warm days
- Use the seven second hand test before walking on any paved surface
- Stick to grass or shaded paths when pavement tests too hot
- Consider protective paw wax or booties for dogs walking on pavement often
4. Provide Consistent Access to Shade
Direct sun exposure raises body temperature quickly, so any time spent outdoors should include reliable access to shade, whether from trees, a porch, or a portable shade structure like an umbrella or small tent.
If your dog spends extended time outside, check periodically that their shaded spot has not shifted with the sun’s movement throughout the day, since a shady area in the morning might be in direct sun by early afternoon.
- Trees, porches, or portable shade structures all work well outdoors
- Check that shaded areas have not shifted into direct sun later in the day
- Bring a portable shade option for outings away from home
- Combine shade access with breaks from active play or exercise
5. Never Leave a Dog in a Parked Car
This is one of the most consistently repeated warnings from veterinarians every summer, and for good reason. A car can heat up dramatically within minutes, even on a day that does not feel extremely hot, and cracking a window does very little to slow that process down.
There is genuinely no safe amount of time to leave a dog alone in a parked car during warm weather, regardless of how quick the errand seems. If a task requires leaving the car, it requires leaving the dog at home instead.
- Car interiors heat up dramatically within just a few minutes
- Cracking windows does not meaningfully slow the temperature rise
- There is no safe duration for leaving a dog alone in a parked car
- Plan errands around leaving your dog at home during warm weather
6. Use Cooling Mats, Vests, or Damp Towels
Cooling mats use gel or water filled cores that stay cooler than the surrounding air, giving a dog a comfortable spot to lie down without needing constant air conditioning. Cooling vests work similarly, using evaporation to draw heat away from the body during active outdoor time.
A simple damp towel placed in a dog’s favorite resting spot offers a low cost alternative that still provides real relief, especially when paired with a fan to enhance the cooling effect through evaporation.
- Cooling mats provide a consistently cool resting spot without needing constant AC
- Cooling vests work well for dogs that still need to be active outdoors
- A damp towel is a low cost alternative that still offers real relief
- Pair with a fan to enhance cooling through evaporation
7. Offer Frozen Treats and Ice Enrichment
Frozen treats cool a dog down from the inside while also doubling as a mentally engaging activity. Freezing plain yogurt, low sodium broth, or mashed fruit in an ice cube tray or silicone mold makes for an easy, dog safe summer treat.
Stuffing a hollow rubber toy with a dog safe filling and freezing it overnight extends the cooling effect even further, giving your dog a longer lasting activity that keeps them occupied and cooler at the same time.
- Freeze plain yogurt, low sodium broth, or mashed fruit for a simple cold treat
- Frozen stuffed toys combine cooling relief with mental stimulation
- Avoid added sugar or anything containing xylitol in homemade frozen treats
- A great low effort option for hot afternoons indoors
8. Groom Instead of Shaving a Double Coated Dog
It seems logical that less fur would mean a cooler dog, but for double coated breeds, the undercoat actually helps regulate temperature by insulating against both heat and cold. Shaving it off can remove that natural protection and, in some cases, make overheating more likely rather than less.
Regular brushing to remove loose, dead undercoat is generally the better approach, improving airflow to the skin without stripping away the insulation the coat naturally provides.
- Double coated breeds should generally not be shaved for summer
- The undercoat insulates against heat as well as cold
- Regular brushing removes dead hair and improves airflow safely
- Talk to a groomer or vet before deciding to trim a heavily coated breed
9. Set Up a Kiddie Pool or Sprinkler
A shallow kiddie pool filled with cool water gives a dog an easy way to cool off through their paw pads, one of the few areas where they actually have functional sweat glands. Many dogs take to this immediately, while others need a bit of encouragement with toys or treats nearby.
A sprinkler or hose on a gentle setting works as a fun alternative for dogs that enjoy water play more than standing still, offering both cooling relief and an entertaining activity on a hot day.
- A shallow pool cools dogs effectively through their paw pads
- Some dogs need encouragement with toys or treats to try it out
- A gentle sprinkler works well for dogs that prefer movement over standing water
- Always supervise water play, even in shallow, low risk setups
10. Watch At-Risk Dogs Especially Closely
Brachycephalic breeds, dogs with flat faces like Pugs, Bulldogs, and Boxers, struggle to pant as effectively due to their shortened airways, which puts them at meaningfully higher risk of overheating even in moderate heat.
Senior dogs, overweight dogs, and those with existing heart or respiratory conditions also face elevated risk and should have their outdoor time and activity level scaled back more conservatively than a healthy, average dog during summer months.
- Flat faced breeds struggle to pant efficiently and overheat more easily
- Senior and overweight dogs face elevated heat related risk
- Dogs with heart or respiratory conditions need extra conservative activity limits
- When in doubt with an at-risk dog, err on the side of less outdoor time
Recognizing Heatstroke: Signs and What to Do
| Sign | What It Looks Like | Action Needed |
| Heavy panting | Rapid, labored breathing that does not settle | Move to shade or AC immediately |
| Excessive drooling | Thicker saliva, drooling more than usual | Offer small sips of cool water |
| Bright red gums or tongue | Noticeably deeper red than normal pink | Begin cooling, monitor closely |
| Weakness or stumbling | Uncoordinated movement, appears dizzy | Stop activity, cool down, call vet |
| Vomiting | Occurs alongside other heat signs | Seek emergency vet care immediately |
| Collapse or seizure | Loss of consciousness or convulsions | Emergency vet visit, this is critical |
Heatstroke can escalate quickly and become fatal, so any combination of these signs warrants immediate action, moving your dog to a cool space, offering water, and contacting a vet right away rather than waiting to see if symptoms improve on their own.
Keeping Your Dog Comfortable Beyond Just the Heat
Summer heat often means shorter or fewer walks, which can leave a dog with pent up energy that needs an outlet somewhere else. Redirecting that energy indoors during the hottest parts of the day helps prevent boredom from turning into a bigger problem.
Our guide on 12 indoor games to keep your dog entertained is a great resource for exactly this, offering mental and physical stimulation options that do not require stepping outside during peak heat.
If you are noticing any digestive upset alongside heat exposure, which can sometimes happen together, our guide on common dog digestive problems and how to keep their tummy healthy can help you figure out whether it is heat related or something separate worth mentioning to your vet.
Frequently Asked Questions
Conclusion
Keeping your dog cool in summer comes down to a handful of consistent habits, plenty of water, smart walk timing, reliable shade, and close attention to how your individual dog handles the heat. At-risk breeds and dogs need even more caution, since their margin for error is genuinely smaller.
Learning to recognize heatstroke signs early is just as important as prevention itself, since quick action in those first moments can make a real difference. A little extra care during the hottest months keeps summer enjoyable and safe for your dog rather than something to simply get through.