How do I keep a dog safe in hot weather?

How to recognise and prevent overheating in dogs, the pavement test, and what to do in an emergency.

Difficulty: beginner
Time: 15 min
Read: 2 min
Safety: warning

Short answer

Walk early or late, never in the midday heat, and test the pavement with the back of your hand for seven seconds — if it's too hot for you, it's too hot for paws. Never leave a dog in a car, even briefly with windows open. Heatstroke in dogs is a medical emergency.

Dogs cool themselves mainly by panting, which is far less effective than sweating and becomes almost useless in high humidity. That's why dogs overheat in conditions people find merely uncomfortable, and why flat-faced breeds, older dogs and overweight dogs are at much higher risk.

Safety

Heatstroke in dogs is a veterinary emergency and can be fatal quickly. Signs include heavy panting, drooling, bright red gums, disorientation, vomiting or collapse. Move the dog to shade, apply cool (not ice-cold) water, offer small amounts of water, and contact a vet immediately. Never leave a dog in a parked car in warm weather — temperatures inside rise dangerously within minutes even with windows open.

Step by step

Walk in the early morning or late evening in hot weather.Avoid the middle of the day entirely. A missed walk is far better than heatstroke.
Test the pavement with the back of your hand for seven seconds.If you can't hold it there comfortably, it will burn paw pads. Tarmac holds heat long after the air has cooled.
Provide constant access to shade and fresh water.Multiple water bowls, refreshed often. Shade moves through the day — check it's still there.
Never leave a dog in a parked car.Interior temperatures rise dangerously within minutes, even in mild weather with windows cracked. This is the single most important rule.
Know the higher-risk groups: flat-faced breeds, older dogs, overweight dogs, thick-coated breeds and puppies.Flat-faced breeds in particular cannot pant efficiently and overheat far more easily.
Learn the warning signs: excessive panting, drooling, bright red gums, lethargy, staggering.Early signs are easy to dismiss. Acting early is what prevents an emergency.
If you suspect heatstroke, move to shade, apply cool water, and call a vet immediately.Cool, not ice-cold — very cold water can cause shock. Get veterinary help while cooling, not after.
Offer cooling options: damp towels, paddling pools, cooling mats, frozen treats.Dogs will use them if available. Never force a dog into water it doesn't want to enter.

Tips

Humidity matters as much as temperature — panting relies on evaporation, which works poorly in humid air.
Frozen kongs and ice cubes in the water bowl are simple and dogs generally like them.
Trimming a double-coated dog's coat can make things worse — the coat insulates against heat as well as cold. Ask a vet or groomer before clipping.
If a dog is reluctant to walk in hot weather, that's information. Don't push it.

Common mistakes

Leaving a dog in a car 'just for a minute' — Car interiors heat dangerously fast. This kills dogs every summer.
Walking on hot pavement — Paw pads burn on surfaces that feel merely warm to a shod foot.
Using ice-cold water on an overheating dog — It can cause shock and constrict blood vessels, slowing cooling. Cool water is correct.
Waiting to see if the dog improves — Heatstroke progresses fast. Contact a vet while cooling, not afterwards.

Questions people ask

What temperature is too hot to walk a dog?

There's no single figure — it depends on humidity, the dog's breed, age and health, and the surface. The pavement test and walking at cooler times of day are more reliable than a temperature threshold.

What are the signs of heatstroke in dogs?

Heavy or frantic panting, drooling, bright red gums, lethargy, disorientation, vomiting, or collapse. It's an emergency — cool the dog and contact a vet immediately.