As summer sets in across St. Petersburg, Florida, the rising temperatures bring more than just sunny skies and beach days—they bring serious risks for our pets. Heatstroke is one of the most dangerous and fast-acting emergencies pets face during the warmer months. It can escalate quickly and lead to life-threatening complications, even after your pet seems to recover.

At Skyway Animal Hospital, we want every pet family to enjoy the season safely. In this guide, you’ll learn how to identify early signs of heat stress, how to prevent heatstroke, and—just as importantly—what to expect in the days following a heat-related emergency. Summer fun should be safe, and with the right precautions, it absolutely can be.

Not sure your pet is ready for summer activities?
 Schedule a wellness check with us today.

Why Heatstroke Happens So Fast in Pets

Pets don’t cool down like people do. Dogs and cats can’t sweat through their skin—instead, they pant to release heat and, to a much lesser extent, sweat through their paw pads. But when temperatures and humidity rise, panting becomes less effective. Combine that with layers of insulating fur, and it’s easy to see why pets are vulnerable—especially when they can’t tell us how they’re feeling.

Fur traps heat. Short noses limit airflow. Extra body fat insulates. Pre-existing heart or lung conditions reduce tolerance. All of these factors increase risk.

Which Pets Are Most at Risk for Heatstroke?

Some pets are more sensitive to high temperatures and need extra precautions, especially during outdoor time:

  • Brachycephalic breeds (those with short noses), like Bulldogs, Pugs, French Bulldogs, and Persian cats, have restricted airways that limit their ability to pant and cool themselves.
  • Overweight pets retain more body heat and tire faster. Even a few extra pounds can make a big difference.
  • Senior pets, and those with heart or respiratory disease, are less able to cope with heat stress and may not recover as quickly—or at all—after a heat episode.
  • Dark-colored pets, especially black-coated dogs, absorb heat from the sun faster than lighter-colored pets.

Learn more about thermoregulation in brachycephalic pets

Caution for the First Big Walk of the Season

After a lazy winter of couch snuggles and skipped walks, many pets head into the warmer months out of shape, with soft paw pads and extra weight. That first big hike, beach day, or park adventure may feel fun—but it can be dangerous.

Before you take your pet on a long walk or hike in the sun:

  • Ease into activity slowly. Build up stamina with short walks in the early morning or evening.
  • Protect paw pads with breathable booties—they allow for sweating but help prevent burns from hot pavement.
  • Don’t let enthusiasm override caution. Some dogs (especially working breeds or young pups) will push themselves to the point of collapse.
  • Be the voice of reason for brachycephalic breeds. Even if your Bulldog is pulling at the leash to go, it’s up to you to limit their exertion.

Spotting Heatstroke Before It’s Too Late

Heatstroke doesn’t sneak up—it sends warning signs. The earlier you catch them, the better the outcome.

Early signs of heat stress include:

  • Excessive panting or drooling
  • Rapid breathing or an elevated heart rate
  • Pacing or restlessness, or seeking shade
  • Sluggish behavior or reluctance to move

Advanced symptoms that require immediate emergency care:

  • Vomiting or diarrhea (sometimes with blood)
  • Gums that are bright red or pale
  • Confusion, disorientation, staggering
  • Seizures or collapse

Heatstroke is a medical emergency. Move your pet to a cool, shaded space, offer small sips of cool water, apply damp towels to their body, and contact us immediately.
Read more about available emergency services at Skyway Animal Hospital.

Want to Learn More? More heatstroke tips from AAHA

What Happens After Heatstroke? Don’t Let Your Guard Down

Even if your pet appears to bounce back after overheating, the real danger may still lie ahead. Heatstroke causes damage at the cellular level, affecting internal organs and blood vessels. In the 24 to 72 hours following a heat event, pets are at high risk for:

Kidney failure:

Dehydration and poor circulation can impair kidney function, sometimes irreversibly.

Liver damage:

The liver is sensitive to heat stress and can begin to fail, leading to clotting issues and toxin buildup.

Gastrointestinal injury:

Heat can damage the lining of the intestines, increasing the risk of sepsis or bacterial infection.

Neurological effects:

Brain swelling or lack of oxygen can lead to lasting confusion, seizures, or permanent behavioral changes.

Clotting disorders (DIC):

Damage to blood vessels may trigger a serious condition called disseminated intravascular coagulation, where abnormal clotting and bleeding occur simultaneously.

Other Heat-Related Health Risks

Even pets who don’t experience full heatstroke can suffer damage from sun exposure and hot surfaces.

Sunburn and Skin Cancer

Pets with light-colored fur, thin coats, or hairless breeds are prone to sunburn, especially on the nose, ears, and belly. Repeated sun exposure can lead to squamous cell carcinoma or even melanoma, particularly in sun-loving cats and dogs who lounge on patios or sandy beaches.

Burned Paw Pads

Pavement and sand can reach dangerous temperatures quickly. Burned paws may blister, peel, or become infected. Use booties that protect without overheating or avoid walking on hot surfaces altogether.

Ocular Issues: Pannus

Also known as chronic superficial keratitis, pannus is an inflammatory eye disease worsened by UV exposure, especially in breeds like German Shepherds. Protective UV-filtering goggles (like “doggles”) may be recommended for at-risk dogs.

Everyday Prevention Tips for a Safe Summer

Hydration Matters

Keep multiple bowls of cool, fresh water available indoors and out. For picky drinkers, try ice cubes, pet-safe broths, or frozen treats.

Adjust Activity to the Temperature

Walk in the early morning or evening. Take breaks, stay in shaded areas, and avoid strenuous play when the heat index climbs.

Provide Cooling Support

Fans, cooling mats, frozen water bottles wrapped in towels, and even kiddie pools can help pets stay cool—just be sure to supervise around water.

 Get tips to keep indoor pets entertained and cool

Outdoor Cats Need Summer Safety, Too

Don’t forget our feline friends. Outdoor cats may not show obvious signs of distress, but they’re at risk for heatstroke, dehydration, and sun-related skin damage.

  • Offer shaded shelters with good airflow
  • Keep multiple water sources accessible
  • Watch for signs of exhaustion or excessive grooming

 Read more about outdoor cat safety

How Skyway Animal Hospital Helps You Keep Your Pet Safe

At Skyway Animal Hospital, we’re here to support you throughout the summer. Our team offers:

  • Emergency care for heatstroke and dehydration
  • Advanced monitoring after heat-related illness
  • Summer wellness exams to assess heat sensitivity
  • Nutritional support for hydration and healthy weight loss
  • Custom care plans for brachycephalic and at-risk pets

Don’t wait until there’s a crisis. Preventive care can save lives.
 Contact us today for an appointment.

Be Your Pet’s Best Advocate This Summer

You know your pet better than anyone. If something doesn’t seem right, trust your instincts. A dog panting too hard, a cat hiding more than usual, or a pet that seems “off” after being in the heat could be experiencing early signs of distress.

Heatstroke is preventable, but it requires preparation and vigilance. Ease your pet into summer activities, protect them from overexposure, and never underestimate how quickly heat can become dangerous.

Visit Skyway Animal Hospital for expert summer care.

Let’s make this summer a safe, happy, and healthy one—for you and your best friend.