Why dogs overheat faster than humans

Dogs cool themselves primarily through panting. They have very limited ability to sweat, as sweat glands are only present in their paw pads. This means their cooling capacity depends heavily on air circulation and evaporation from the tongue and respiratory tract.

When the surrounding air temperature approaches or exceeds a dog’s normal body temperature (around 38–39°C / 100–102°F), heat loss becomes inefficient. If humidity is high, panting becomes even less effective.

According to veterinary data, the risk of heat stroke in dogs increases rapidly at temperatures above 26–28°C / 79–82°F. At this point, even moderate activity can push a dog into dangerous overheating.

If body temperature rises above approximately 40.5–41°C / 105–106°F, heat stroke can occur — a life-threatening emergency requiring immediate veterinary care.