How to Keep Your Dog Cool & Safe on Summer Hikes

Dogs are far worse at shedding heat than we are. They can’t sweat through their skin — they cool mainly by panting — so on a hot trail a dog can go from fine to a genuine emergency faster than most owners expect. Heatstroke in dogs is common in summer, and it can be fatal.

The good news: it’s almost entirely preventable with a few disciplined habits. This guide covers the vet-backed rules for hot-weather hiking — when to go, how to protect paws, what gear actually helps, and the warning signs you cannot afford to miss. It’s general safety information, not a substitute for your own vet’s advice.

Hike the cool hours — this rule does the most work

The single biggest thing you can do is change your timing. Hike at dawn or in the evening and skip the middle of the day entirely. The AVMA and AKC both put this first: exercise dogs during the cooler parts of the day, take frequent breaks, and rest in shade.

Caution rises steeply with temperature. Above roughly 85°F you should be actively careful, and above 90°F the overheating risk is serious for most dogs. But air temperature is only part of it — humidity matters just as much, because panting stops working when the air is already saturated. On a humid day, a “mild” 82°F can be dangerous.

Know your dog’s real limits

There is no universal safe temperature, because it depends heavily on the dog:

• Flat-faced (brachycephalic) breeds — Bulldogs, Pugs, Boxers — overheat dramatically faster; their airways can’t move enough air to cool efficiently.
• Thick, double-coated breeds — Huskies, Malamutes, many shepherds — hold heat.
• Overweight, very young, senior, or unwell dogs all have lower limits.

Match the hike to the dog in front of you, not to what you’d like to do.

Protect the paws: the seven-second test

Hot ground is the danger owners forget. When the air is 86°F, asphalt can hit 135°F — enough to burn pads in minutes. Rock and sand get just as hot.

The test is simple: press the back of your hand flat on the surface for about seven seconds. If you can’t hold it comfortably, it’s too hot for your dog. Stick to shaded, natural trails, hike in the cool hours, and consider a paw balm to toughen and shield the pads on rough or warm ground.

Check Dog Paw Balm on Amazon →

Water: bring more than you think, offer it constantly

Dehydration and overheating go hand in hand. Carry plenty of water for your dog — more than you expect — and offer small drinks frequently rather than one big one. Don’t rely on trailside streams: beyond giardia, warm stagnant water can harbour toxic blue-green algae.

A portable dog water bottle or a collapsible bowl makes frequent stops effortless, which means you’ll actually do it.

Cooling gear that genuinely helps

Gear won’t override bad timing, but it buys margin on warm days:

• A cooling vest. Soak it, wring it, and evaporation pulls heat off your dog’s core as they move. Genuinely effective on dry-heat hikes.
• A cooling mat for the car and camp, giving your dog a cool surface to offload heat during breaks.

Check Dog Cooling Vests on Amazon →

Wetting your dog’s belly, groin and paws at water crossings is a free, effective cool-down too — those areas shed heat fastest.

Learn the warning signs — and act fast

Know the escalation, because heatstroke moves quickly.

Early heat stress (stop and cool down now):

• Heavy, frantic panting and drooling
• Slowing down, lagging, seeking shade
• Restlessness, then reluctance to move

Heatstroke — a medical emergency:

• Gums turning bright red, or blue/purple
• Thick, ropey drool; vomiting or diarrhoea
• Confusion, stumbling, weakness
• Collapse, loss of consciousness, or seizures

A dog’s normal temperature is about 99–102.5°F. Above 104°F is heat stress; above 106°F is heatstroke that requires emergency veterinary care.

If your dog is overheating

Move to shade immediately, offer water, and start cooling with cool (not ice-cold) water on the belly, groin and paws — ice-cold water can constrict blood vessels and slow cooling. Then get to a vet right away, even if they seem to recover: heatstroke can cause internal damage that shows up hours later. When in doubt, treat it as an emergency and call ahead so the clinic is ready.

Plan the hot-weather hike

• Check the forecast — temperature and humidity.
• Go at dawn or dusk; pick shaded, water-adjacent trails.
• Pack extra water and offer it often.
• Do the seven-second pavement test before you start.
• Take frequent shade breaks and turn back early if your dog is flagging.
• Never, ever leave a dog in a parked car — interior temperatures become lethal within minutes.

The bottom line

Heat is the trail danger that hurts the most dogs and gets underestimated the most. Hike the cool hours, respect your dog’s breed limits, protect the paws, carry more water than you need, and know the warning signs cold. Do that and summer stays the best hiking season of the year — for both of you.

Sources

• AVMA — Warm Weather Pet Safety
• AKC — Heatstroke in Dogs: Signs, Symptoms, Treatments
• AKC — How to Protect Dog Paws From Hot Pavement
• Cornell University College of Veterinary Medicine — Summer Heat Safety Tips for Dogs