How long should dogs be outside in hot weather?

Summertime means more time outdoors, but when it comes to our dogs, we need to be extra mindful of the heat.

So, how long should dogs be outside in hot weather? Dogs can’t cool off as easily as we do, making them more vulnerable to heat. But you can't just keep them locked up inside 24/7, right?

Good news: you don't have to. Here are some tips to keep your pup safe and happy when it’s hot outside.

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Understanding heat tolerance and sunbathing behaviour

Not all dogs are the same when it comes to handling the heat. Factors like breed, size, age, and health can make a big difference.

For instance, flat-faced breeds like Bulldogs struggle more in the heat due to their compromised airways, while older or overweight dogs can overheat quickly. It’s also helpful to know which dog breeds are best suited for hot weather so you can better understand your pup's needs.

You might notice your dog loves to bask in the sun, even on warm days. Some dogs instinctively seek out sunlight for warmth and comfort, much like we do. Sunbathing can provide them with a sense of relaxation and help regulate their body temperature.

But it’s important to monitor them closely; too much time in direct sunlight with no access to shade, especially during the heat of the day, can lead to overheating or even sunburn on areas with less fur.

What temperature can dogs be outside?

Temperature plays a big role in how long your dog can safely stay outside.

For most dogs, temperatures up to 24°C (75°F) are fine, but temperatures higher than this can mean it’s time to limit outdoor play. Extra care needs to be taken for older dogs or breeds that don’t handle heat well.

Anything above 32°C (90°F) can be dangerous.

If your dog is getting up there in years, keeping senior dogs cool is extra important during those summer months.

Make sure there’s plenty of shade and water available whenever your dog is outside. Before you head out, find out how hot is too hot to walk your dog to avoid any mishaps on a sunny day.

Safe outdoor time and when to avoid the heat

So, how long can dogs stay outside in the heat? If the temperature is between 21°C (70°F) and 24°C (75°F), most dogs can enjoy 30 minutes to an hour of low-key playtime without issue.

As it gets hotter—around 26°C (80°F) and above—limit that time to 15–30 minutes of gentle walking. When possible, stick to walking in cooler mornings and evenings. Always keep an eye on your dog for signs of discomfort, and when in doubt, bring them inside for a break.

Certain situations call for extra caution. Never leave your dog outside in warm weather without supervision, but especially not in a parked car.

Even on a mild day of 21°C (70°F,) the temperature inside a car can climb to a deadly 37°C (100°F) in just 20 minutes. At 32°C (90°F), it can shoot up to 60°C (140°F) or more, making the car a literal death trap.

Dogs should also never be left alone in a backyard or tied up without access to plenty of shade and water. Direct sunlight and high temperatures can quickly lead to overheating. Never shut your dog in a sun room in your home, as these can warm up to unbearable temperatures for your pet.

Hot surfaces like concrete or asphalt can also burn their paws, so this is another good reason to stick to cooler parts of the day for your dog’s walks.

Outdoor sleeping and enclosure safety

Letting your dog sleep outside can be safe, but the temperature needs to be just right.

When the nighttime temperature is above 27°C (80°F), it’s too hot for most dogs to sleep comfortably outside, as they may struggle to cool down during the night.

Outdoor enclosures can be a great way to let your dog enjoy the fresh air safely, but special care is needed in hot weather. The enclosure should have plenty of shade and airflow to keep things cool. A cooling pad, an electric fan, or a misting system inside the enclosure can help keep your pup comfortable.

Ground materials like grass or wood chips are better options than concrete or gravel, which can get too hot and burn your dog’s paws if situated in direct sunlight.

Dog houses can provide additional shelter, but they need to be well-ventilated and placed in the shade. If the dog house is too small or poorly ventilated, it can trap heat, making it uncomfortable or even dangerous for your dog.

Even with these precautions, limit the time your dog spends outside during the hottest parts of the day—typically between 10 a.m. and 4 p.m.

Heat stroke in dogs: Warning signs and what to do

Knowing the signs of overheating can save your dog’s life. Watch out for:

• Heavy panting

• Drooling

• Lethargy

• Vomiting

• Diarrhoea

• Rapid heart rate

• Collapse

• Seizures

• Loss of consciousness

If your dog shows any of these signs, act quickly—move them to a cool place, soak their fur all over with cool water, offer drinking water, and get veterinary care immediately.

Do not cover them with damp towels. These will warm up very quickly and prevent body heat from escaping.

Tips for keeping your dog cool

To keep your dog safe during hot weather, plan walks and playtime for the cooler hours of the day, like early morning or late evening.

Cooling products like vests or mats can also help, and try to avoid hot pavement that can burn your dog’s paws.

Keeping your dog well-hydrated is crucial too, so make sure they always have access to fresh water. 

Finally, the right amount of a nutritious diet helps keep your dog healthy and better equipped to handle the heat (obesity = over-insulation).

The bottom line?

When it’s hot outside, it’s all about keeping your dog safe. Limit their time outdoors, make sure they have shade and water, and always watch for signs of heat stress. No dog has died from missing a walk or two, but heatstroke could be fatal.

Every dog is different, so pay attention to how your pup reacts to the heat, and don’t hesitate to check with your vet if you’re unsure.

At ManyPets, we’re here to help you and your furry friend enjoy a happy, healthy summer—and life! Learn more about how dog insurance can give you peace of mind in case the unexpected happens:

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