Dogs at risk of heatstroke and death – 6 tell-tale signs

During warm weather, the pull to go away with the family – including the dog – to a coastal town can feel particularly strong, but there might be stops along the way to the destination. While you may be popping out the car for a quick loo break, you could inadvertedly be putting your dog‘s life at risk. 

Dalma Szucs, Head of Trust and Safety at the UK’s leading pet site Pets4Homes, issued a stark warning: “One of the most common – and most dangerous – misconceptions is that it’s safe to leave a dog in the car for just a few minutes.” She added that even leaving the window open slightly does little to help.

“Dogs lack the same cooling mechanisms as humans; they rely mainly on panting, which becomes ineffective in extreme heat,” she explained. The simple rule to follow is: if you’re leaving the car, your dog should go with you.

Heatstroke can come on rapidly, and knowing the warning signs that your dog is suffering – whether that’s in a car or not – is key. 

There are six key symptoms to watch for include heavy panting, excessive drooling, bright red or pale gums, glazed eyes, vomiting, and collapse.

Affected dogs may also appear wobbly or confused, with some struggling to stand or walk in a straight line. 

Szucs warns: “Heatstroke in dogs can escalate quickly and is often fatal if not treated promptly.”

If you notice any of these symptoms, it’s critical to move your dog to a cooler area immediately, offer small amounts of cool (not ice-cold) water, and contact a vet straight away.

Public awareness around dogs left in cars is growing, but many still don’t know what to do when they spot an animal in distress.

Szucs urges anyone who sees a dog alone in a hot car to act fast: “Call 999 and report it to the police. Time is critical.”

Tips for travelling with your dog during a heatwave

Planning ahead is vital for pet owners travelling during the summer, as even short car journeys can be risky. To protect your dog, avoid travelling in peak heat, ideally going early in the morning or later in the evening.

Always bring water, stop regularly, and make sure the car is well-ventilated with sunshades or reflective covers in place.

“Never assume a dog will signal when they’re overheating – heat stress can develop silently and quickly,” says Szucs.

Cooling mats, portable fans, and frequent breaks can help keep your dog safe, but nothing replaces vigilance and preparation.