Summer heat can be dangerous for dogs long before it feels uncomfortable to us. Because dogs can't sweat through their skin the way humans do, they rely on panting and a small amount of sweat through their paw pads to regulate body temperature. That makes them far more vulnerable to heat exhaustion and heatstroke than we are.
The good news: a few simple habits can keep your dog safe and comfortable all season. Below are practical, breed-aware tips for keeping dogs cool in summer, plus guidance on when it's too hot to walk.
1. Walk early or late — never at midday
The safest walk windows are early morning and late evening, when pavement has cooled and the sun is low. Midday walks on hot asphalt can burn paw pads in minutes and expose your dog to peak temperatures. If the ground is too hot for your bare hand, it's too hot for your dog's paws.
2. Check the pavement before you leave
Press the back of your hand against the asphalt for seven seconds. If it's uncomfortably hot, skip the walk or stick to grassy, shaded routes. Asphalt and concrete absorb heat and can reach temperatures far higher than the air.
3. Provide shade and fresh water
Whether you're in the backyard or on a hike, make sure your dog always has access to shade and cool water. Bring a collapsible bowl on walks, and consider adding ice cubes to the water bowl at home.
4. Use cooling mats, vests, or damp towels
Cooling vests and mats can help lower body temperature during walks or rest time. A damp towel in the shade also works in a pinch. Avoid leaving cooling gear in direct sun, where it can heat up.
5. Don't shave double-coated breeds
Breeds like Huskies, Malamutes, Golden Retrievers, and Australian Shepherds have coats that insulate against heat as well as cold. Shaving can disrupt this natural temperature regulation and increase the risk of sunburn. Instead, brush regularly to remove the dense undercoat.
6. Never leave your dog in a parked car
Car interiors can reach deadly temperatures within minutes, even with the windows cracked and even on milder days. If your dog can't come with you wherever you're going, leave them at home.
7. Limit exercise on hot days
On very hot days, skip fetch, running, and long hikes. A short sniffari in the shade is a safer way to provide mental stimulation without overheating.
8. Know the warning signs of overheating
Watch for:
- Heavy or labored panting
- Excessive drooling
- Bright red or pale gums
- Lethargy, weakness, or stumbling
- Vomiting or diarrhea
- Collapse or seizures
If you see any of these signs, stop activity immediately, move your dog to a cool place, and contact your veterinarian or an emergency clinic.
9. Cool down gradually
For a mildly warm dog, offer cool water and rest in air conditioning or shade. If you suspect heatstroke, use cool (not ice-cold) water or wet towels on the neck, armpits, and groin, and get to a vet as soon as possible.
10. Adjust for your dog's individual risk
Some dogs overheat faster than others. Higher-risk groups include brachycephalic breeds (Bulldogs, Pugs, Boxers), seniors, puppies, overweight dogs, and those with heart, lung, or airway conditions. Dark-coated dogs also absorb more heat from sunlight.
How SniffCast helps you pick safer walk times
SniffCast checks real-time temperature, heat index, humidity, air quality, and UV for your location, then recommends the best walk windows for each dog in your household. Because every dog has different sensitivities, SniffCast factors in breed, age, weight, and health conditions to personalize the advice.
Frequently asked questions
- What temperature is too hot to walk a dog?
- Many veterinarians advise caution when the temperature exceeds 75–80°F (24–27°C), especially for brachycephalic breeds, seniors, overweight dogs, or those with heart or respiratory conditions. On hot days, walk early in the morning or after sunset, and check the pavement with your hand before heading out.
- How do I know if my dog is overheating?
- Early signs include heavy panting, drooling, bright red gums, lethargy, and unsteadiness. Severe heatstroke can cause vomiting, diarrhea, collapse, or seizures. If you suspect heatstroke, move your dog to a cool area, offer small amounts of lukewarm water, and contact a veterinarian immediately.
- Can I give my dog ice water to cool down?
- Small amounts of cool (not ice-cold) water are generally fine for a mildly warm dog. For suspected heatstroke, avoid ice water or ice packs directly on the skin, because rapid cooling can constrict blood vessels and trap heat. Use cool, wet towels on the neck, armpits, and groin, and seek veterinary care.
- Should I shave my dog in summer?
- Usually no. Double-coated breeds like Huskies, Golden Retrievers, and Border Collies use their undercoat as insulation against both heat and cold. Shaving can damage the coat and increase sunburn risk. Regular brushing to remove loose undercoat is a safer way to help them stay cool.
- Is it safe to walk my dog when it's 85°F?
- For many dogs, 85°F (29°C) is risky for vigorous exercise. Short-nosed breeds, dogs with thick coats, and those with health issues should avoid exertion in these conditions. If you must go out, keep it brief, stay on grass, carry water, and watch closely for signs of overheating.
Sources consulted: American Kennel Club, ASPCA.