Heatstroke and hot car safety: what every owner needs to know
A parked car's interior climbs dangerously fast — even on a mild day, even with a window cracked. This is the single most preventable, most serious seasonal risk.
Why 'just a few minutes' isn't safe
A parked car's interior temperature can climb more than 20 degrees above the outside temperature within just 10 minutes. On a 70°F day, that's already into dangerous territory well before you'd expect. Cracking a window doesn't meaningfully change this. The only safe answer is never leaving a pet alone in a parked car, regardless of how quick the errand feels.
Recognizing heatstroke
Heavy panting, excessive drooling, bright red gums, vomiting, or collapse are signs of heatstroke and constitute a medical emergency. Move the pet to a cool area immediately, offer water, and get to a vet right away — don't wait to see if it resolves on its own, since heatstroke can progress to organ damage quickly.
Our seasonal safety guide covers cold-weather risks too, plus the pavement-temperature test worth knowing. If you're not sure whether what you're seeing is heatstroke, our emergency checklist tool can help you decide in under a minute.
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Educational content only. This article is for general educational purposes and isn't a substitute for professional veterinary, behavioral, or medical advice — always consult a licensed professional about your own pet's specific needs. Frolicy's articles are researched from publicly available sources and written with AI assistance; they are not written or reviewed by a licensed veterinarian or behaviorist. Frolicy and its owners aren't liable for outcomes from following this content. See our Terms of Use for full details.