When is it too hot to walk your dog? What to know as California heat wave hits

As parts of California brace for triple-digit temperatures and heightened wildfire danger, pet owners might be wondering whether it’s safe for their pets to spend time outdoors.

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Hot weather can be especially dangerous for pets, according to the American Red Cross.

Dogs, cats and pets can quickly suffer from heat-related illnesses when left in poorly ventilated spaces or exposed to high temperatures.

As of Tuesday, June 9, at least 10 dogs, cats and other pets have died from heat-related causes in the United States so far in 2026, according to People for the Ethical Treatment of Animals.

“In 2025 alone, 150 animals endured heat-related deaths and another 365 were rescued from the heat — and those are just the ones that were reported,” PETA said in a June 4 update. “Most almost certainly aren’t.”

How hot is too hot to walk your dog outside in California?

Here’s how to keep pets safe as temperatures rise:

What are the signs of heat stroke in dogs?

Unlike humans, dogs don’t sweat through their skin to cool off, according to the California Department of Public Health.

This makes them especially vulnerable to overheating during heat waves.

Symptoms of heat stroke in pets include:

• Heavy panting
• Drooling
• Rapid breathing
• Dry or sticky gums
• Very hot skin
• Higher-than-normal heart rate
• Seizures
• Lethargic or disoriented appearance

“Heat stroke in pets is a life-threatening emergency and can lead to organ damage or death if not treated quickly,” the state health department said.

Is it safe to walk your dog in hot weather?

Dogs primarily regulate heat through panting and small sweat glands in their paw pads, according to the American Kennel Club.

This puts them at risk of overheating and heat stroke, especially when walking on hot pavement or spending time in direct sunlight.

According to the California Department of Public Health, pets are more likely to suffer from heat stroke if they:

• Are wearing a muzzle, which makes it harder for them to cool down by panting.
• Are overweight or belong to a large breed.
• Have long or thick fur.
• Have health problems affecting their heart, lungs or windpipe.

Breeds with breathing issues — including bulldogs, pugs, boxers, Boston terriers and Persian cats — are also more susceptible to heat illness, state health officials said.

How hot is too hot to walk your dog?

While many dogs enjoy spending time outdoors, hot weather can quickly become dangerous.

According to the American Kennel Club, temperatures around 70 degrees are generally comfortable for outdoor walks and playtime. However, pet owners should use extra caution once temperatures reach 85 degrees or higher.

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“Pavement, like asphalt or artificial grass, can become incredibly hot and cause discomfort, blisters and burn a dog’s paw pads,” said Jerry Klein, an expert in veterinary emergency and critical care at the American Kennel Club.

Even when the air temperature seems manageable, ground surfaces can become much hotter.

According to the Journal of the American Medical Association, asphalt can heat up to 135 degrees when the air temperature is 86 degrees.

“To find out if the ground is too hot for your dog to walk on, place your hand comfortably on the pavement for 10 seconds,” Klein said. “If it’s too hot for your hand, it’s too hot for your dog’s paws.”

What should I do if my pet shows signs of heat stroke?

If you think your pet has heat stroke, the California Department of Public Health said you should:

• Call your veterinarian or go to an emergency animal clinic right away.
• Move your pet to a cool, shaded area.
• Gently wet their head, paws, belly and ears with cool, not cold, water.
• Keep air flowing around them with a fan, open window or air conditioner.

How to keep your dog safe during a heat wave

To reduce the risk of overheating, pet experts recommend scheduling walks during the cooler parts of the day, such as early morning or evening, and avoiding prolonged time in direct sun.

Staying in “grassy or shaded areas” can also help keep dogs safe, the American Kennel Club said.

If that is not possible, pet owners can try dog shoes.

“Dog shoes or all-terrain boots offer protection from hot surfaces, but many dogs need time to adjust to wearing them before the first outing,” the American Kennel Club said.

During hot weather, pet owners should also:

• Never leave dogs in a parked car.
• Give them fresh water daily.
• Take breaks in the shade and bring water.
• Bring dogs inside.
• Do not shave your dog’s coat, because it helps protect them from sunburn and insulates them from heat.