Is 72°F Too Hot to Leave a Dog in the Car? Yes

A parked car traps heat, so the temperature your dog experiences can become much hotter than the outdoor reading, especially in direct sun. Shade, a cracked window, or a quick errand does not give you reliable control over the temperature inside the car or how long you may be away.

Check the product’s listed specifications when evaluating why 72 degrees is not a safe exception.

If you need to go somewhere your dog cannot enter, leave them at home, bring another adult who can stay with them outside the parked car, or choose a dog-friendly stop. Bring water for the trip and plan breaks, but treat those as travel care—not as a reason to leave your dog unattended in a vehicle.

Check the product’s listed specifications when evaluating what to do before you stop.

Heavy panting, drooling, weakness, confusion, vomiting, or collapse are reasons to act immediately rather than wait to see whether your dog improves on their own. Move your dog to a cooler place, offer water if they can drink, begin cooling them with cool—not icy—water, and contact a veterinarian or emergency veterinary clinic promptly.

Check the product’s listed specifications when evaluating if your dog seems too hot.

Our team recommends making the stop itself part of your travel plan: know which places welcome your pet and who will stay with them when you need to step away. If you also travel with a cat, our How to Travel with a Cat in the Car eBook guide is the featured resource for planning a feline road trip; the same rule about never leaving a pet alone in a parked car still applies.

Check the product’s listed specifications when evaluating plan for the pet you’re traveling with.