Dog Heatstroke Prevention and Response

Heatstroke is a life-threatening emergency in dogs that is almost entirely preventable, and rapid recognition and first aid dramatically improve survival outcomes.

Key Facts

Dogs can develop heatstroke within minutes in hot cars - temperatures can reach 50 degrees C within 20 minutes on a hot day
Brachycephalic breeds including Bulldogs, Pugs, and French Bulldogs are at highest risk due to compromised airway cooling
Normal dog body temperature is 38.3-39.2 degrees C - heatstroke begins above 41 degrees C
First aid involves moving the dog to shade, applying cool (not cold) water, and seeking emergency veterinary care immediately
Even with treatment, mortality rates for severe heatstroke can reach 50%

Welfare Considerations

Heatstroke causes acute, severe suffering - hyperthermia, neurological deterioration, and organ failure produce a profoundly distressing experience before death or recovery. Every case is preventable. The welfare case for public education about heatstroke prevention is compelling: thousands of dogs die unnecessarily every summer from being left in hot cars or over-exercised in hot weather. Simple behavioral changes by owners would eliminate virtually all heatstroke deaths.

What You Can Do

Never leave a dog in a car on a warm day - even 15 minutes can be fatal
Walk dogs in the early morning or evening during hot weather and always carry water
Learn to recognize early heatstroke signs - excessive panting, drooling, weakness, and vomiting
If you see a dog in distress in a hot car, call emergency services immediately
Keep brachycephalic breeds especially cool in summer - they are at high risk even in moderate heat