It's one of the most common — and most avoidable — summer injuries: a dog comes back from a walk limping, and a look at their paw pads reveals redness, blistering, or peeling skin. Asphalt and other dark pavement absorb sunlight and can reach temperatures far higher than the air around them, and a lot of owners genuinely don't realize how hot the ground has gotten until the damage is already done.
Why Pavement Gets So Much Hotter Than the Air
On a sunny 77°F (25°C) day, asphalt can reach well over 125°F (52°C) — hot enough to cause a burn in under a minute of contact. Once the air temperature climbs into the 80s and 90s Fahrenheit, dark pavement can exceed 140-150°F, approaching temperatures that can cause skin damage in a matter of seconds. Paw pads are tough, but they're still skin, and repeated or prolonged contact with surfaces that hot will damage them just like it would damage bare human feet.
Concrete and light-colored surfaces tend to stay somewhat cooler than asphalt, but "cooler than asphalt" still isn't the same as "safe" — sand at the beach and metal surfaces like manhole covers or parked car ramps can get scorching hot too.
The 5-Second Test
Before heading out for a walk on a warm day, press the back of your hand flat against the pavement and hold it there. If you can't comfortably keep your hand on the ground for a full five seconds because it's too hot, it's too hot for your dog's paws as well. This simple test takes only a moment and is far more reliable than guessing based on air temperature alone, since direct sun exposure and surface material make a huge difference.
When to test
- Any day the air temperature is above roughly 77-80°F (25-27°C)
- Midday and early afternoon, when surfaces have had the most time to absorb heat
- On dark asphalt, black rubber mats, metal grates, and sand — all of which heat up faster than grass or light concrete
Protecting Your Dog's Paws
The simplest fix is timing: walk during the cooler parts of the early morning or evening, and stick to grass or shaded paths when possible. If a walk on hot pavement is unavoidable, dog booties or paw wax products designed for heat protection can add a real buffer, though it's worth introducing booties gradually since many dogs need time to get used to the feel of them. Keep walks shorter on hot days generally — this also reduces the risk of the broader heat stress and heatstroke that can come from exertion in high temperatures, since hot pavement and hot air are usually a package deal. If your dog does start limping mid-walk, get them off the hot surface and onto grass or shade immediately, and check their pads for redness, blistering, or peeling once you're home.
Recognizing a burn after the fact
Paw pad burns aren't always obvious right away, especially on dogs with thicker, more pigmented pads. Look for redness, visible blisters, patches of pad that look darker or discolored than the surrounding tissue, limping or reluctance to bear weight, and excessive licking of one or more paws. Mild redness with no broken skin can often be managed by keeping the paw clean and resting the dog off hard surfaces for a day or two, but blistering, oozing, or a dog who won't put weight on the paw at all warrants a vet visit, since burns can become infected without proper care.
Puppies and senior dogs need extra caution
Paw pads toughen with age and exposure, which means puppies — whose pads are still relatively soft — and dogs who spend most of their time indoors on carpet are often more vulnerable to pavement burns than a dog who regularly walks on varied outdoor terrain. Senior dogs may also have thinner, less resilient pads and can be slower to notice or react to discomfort. Building up exposure to different surfaces gradually, and simply being more cautious with these groups on hot days, goes a long way toward preventing an avoidable injury.
Outdoor water hazards deserve the same seasonal caution — if your walks or hikes take you past ponds or lakes in warm weather, it's worth knowing about the algae risks covered in our guide to blue-green algae in still water, since hot weather is exactly when those blooms are most likely to appear.
The Bottom Line
Paw burns are entirely preventable once you know to check. Make the 5-second hand test a habit before any warm-weather walk, favor grass and shade, and shift your walk times earlier or later in the day when the ground is baking. A few seconds of testing can save your dog real pain and a trip to the vet.