The RSPCA has issued urgent advice for dog owners as the UK experiences its third heatwave of the year, with temperatures widely exceeding 30°C. The charity warns that heatstroke can be fatal for dogs, who cannot cool down as effectively as humans, and recommends checking pets' gums for redness as a lesser-known symptom.
Heatstroke Symptoms and Immediate Action
According to the RSPCA, when a dog gets too hot and cannot lower its body temperature by panting, it may develop heatstroke. The charity states: 'This can be fatal, so you need to act fast to reduce their body temperature first, then get help.' Common signs include collapsing, muscle spasms, increased heart rate, weakness, and noisy breathing. However, red gums and a red tongue can also indicate overheating, particularly when accompanied by panting.
The RSPCA explains: 'Whilst this is often a symptom of a dental problem, when coupled with panting and heavy breathing, red gums can occur when a dog is overheating.' Owners are advised to familiarise themselves with all symptoms and act quickly if any appear.
Keeping Dogs Cool During Extreme Heat
The charity emphasises providing plenty of shade, keeping animals hydrated, and remaining alert to heat-related dangers. This advice is especially critical this week, as the Met Office reported temperatures climbing into the mid-30s across parts of the UK. In a blog post shared on Wednesday, the Met Office stated: 'Temperatures are expected to climb into the mid-30s across parts of the UK this week as hot, settled conditions continue, with many areas experiencing their third heatwave of the year.'
The weather service added: 'High pressure remains the dominant feature through the rest of this week, bringing extensive sunshine, dry weather and temperatures widely above 30°C. The hottest conditions are expected on Thursday and Friday, when some locations in England could reach 35 or 36°C.'
Vulnerable Dogs and Risk Factors
While all dogs can suffer from heatstroke, some are more vulnerable. The RSPCA notes that flat-faced breeds, such as bulldogs and pugs, are at higher risk. Other factors include age, coat thickness, and pre-existing health conditions, especially respiratory issues. Puppies and older dogs may struggle to regulate their body temperature effectively.
Owners are urged to monitor their pets closely during the heatwave and take preventive measures to avoid heat-related emergencies. The full list of symptoms and advice is available on the RSPCA website.



