How hot is too hot to walk a dog?

It's a hot afternoon, your dog is at the door, leash in their mouth, doing the thing. And you're standing there wondering — is it actually too hot to take them out?

The honest answer on a lot of summer days is yes. Dogs don't cool themselves the way we do. They walk barefoot on surfaces that can hit 135°F or hotter. And most of them will happily march straight into heat exhaustion because you're holding the leash and they trust you completely.

Here's what you actually need to know.

The temperature guide: what each range means for your dog

Air temperature gives you a starting point, but the pavement is where the real danger is. Keep both in mind.

These are general guidelines. Your dog's size, breed, age, coat type, and health all affect how they handle heat — which we'll get into below.

The pavement test every dog owner should know

Air temperature is only half the picture. On a sunny 86°F day, asphalt can reach 135°F — hot enough to burn your dog's paw pads in minutes.

Before every summer walk, do this:

Press the back of your hand firmly on the pavement and hold it there for 7 seconds. If you can't keep it there comfortably, it's too hot for your dog's paws.

Test in the sun, not just the shade — the difference can be dramatic. And remember: asphalt holds heat well into the evening. A pavement that was dangerous at 3pm can still be dangerous at 7pm.

If the test fails, stick to grass, dirt paths, or shaded surfaces. Or skip the walk entirely and come back after dark.

Which dogs are most at risk in the heat?

Some dogs feel the heat much faster than others. Watch these groups especially closely:

Flat-faced (brachycephalic) breeds

French Bulldogs, Pugs, Boston Terriers, Bulldogs, and Shih Tzus are built with shorter airways that make panting — their primary cooling mechanism — far less efficient. They overheat faster than almost any other type of dog and should be treated as high-risk the moment temperatures climb above 75°F.

Small and toy breeds

Small dogs have a higher surface-area-to-body-mass ratio, which means they lose and absorb heat faster than larger dogs. They also walk closer to the ground, which is exactly where the hottest air sits on a warm day.

Puppies and senior dogs

Young dogs haven't developed the thermoregulation of healthy adults. Senior dogs lose that capacity again as they age. Both groups need shorter outings and more frequent water breaks in warm weather.

Dogs with thick or dark coats

Heavy double-coated breeds absorb more heat in direct sun. Dark coats attract heat the same way dark clothing does on a hot day.

Overweight dogs

Excess weight makes thermoregulation harder. If your dog is carrying extra pounds, treat them as higher-risk and shorten summer walks accordingly.

Signs your dog is too hot — and what to do

Dogs can't tell you they're overheating. Watch for these signs on any summer walk:

• Heavy, rapid, or laboured panting
• Excessive drooling
• Slowing down, stopping, or refusing to walk
• Lifting paws off the ground repeatedly
• Seeking shade or lying down mid-walk
• Glassy or unfocused eyes
• Vomiting or wobbling
• Bright red gums or tongue

If you notice any of these, stop walking immediately. Move to shade, offer water (don't force it), and apply cool — not cold — water to their paws, belly, and neck. Get to a vet if symptoms don't improve quickly. Heatstroke is a medical emergency.

The best times to walk your dog in summer

The simplest rule: walk early or walk late.

• Before 8am — pavement hasn't had time to heat up, air is cooler, and it's the safest window for most dogs on hot days
• After 8pm — air temperature drops and pavement starts to release heat, but always run the 7-second test before heading out — asphalt holds heat longer than you'd expect
• Avoid 10am–6pm on hot days — peak sun, peak pavement temperature, highest risk

If you can only walk during the day, keep it short, stick to grass and shaded paths, bring water, and head home at the first sign of discomfort.

What to do on days that are too hot to walk

Skipping the walk doesn't mean skipping exercise and mental stimulation. Here's what works on the hottest days:

• Indoor play — tug, fetch down a hallway, hide and seek with treats
• Puzzle feeders and sniff mats — mental exercise tires dogs out more than people expect
• Frozen treats — frozen broth cubes, stuffed frozen Kongs, or a lick mat in the freezer
• Paddling pool — a shallow pool in a shaded spot outside can let them cool off safely
• Early morning sniff walk — even a short 10-minute walk at 6am counts and is far safer than a 30-minute midday outing

Caring for burned or sore paws

If your dog walked on a surface that was too hot, their paws may be burned even if they didn't show signs during the walk. Check their pads when you get home. Signs of burned paws include limping, excessive licking, darker or reddened pad colour, or visible blisters.

If you suspect a burn, rinse with cool water, keep your dog off hard surfaces, and contact your vet. Paw burns can be more serious than they look.

Summer walk safety — quick checklist

• ✅ Check the air temperature before heading out
• ✅ Run the 7-second pavement test
• ✅ Walk before 8am or after 8pm on hot days
• ✅ Bring fresh water and a portable bowl
• ✅ Stick to grass and shaded surfaces where possible
• ✅ Keep walks short — even half your usual time is better than pushing through the heat
• ✅ Watch your dog for signs of overheating throughout
• ✅ Check paws when you get home

The bottom line

On a hot day, the question isn't whether your dog wants to walk — they almost always do. The question is whether it's safe to take them. When in doubt, run the pavement test. Walk early. Keep it short. And on the hottest days, save the walk for tomorrow morning and give them a frozen treat instead.

They'll forgive you. They always do.

At FluffnCo, we make matching hoodie sets for pets and their humans — built for the cooler months when walks are the best part of the day. Shop the sets here.