UK vets report rise in pet heatstroke during recent heatwaves

Veterinary professionals in the UK have reported an increase in heatstroke cases among pets during recent heatwaves. The cases have occurred even when animals stayed inside homes or gardens. Dr Katharine Nelson, director of general practice at the Royal Veterinary College, said common triggers such as midday walks or leaving pets in cars had not been factors in the latest incidents.

She noted that animals had become affected while resting or moving around their own properties.

Case patterns Nelson stated that dogs had shown signs after wandering in gardens and cats had become stressed while traveling in carriers. She added that flat-faced breeds, animals with thick coats, and those with respiratory or heart conditions faced higher risk.

Dave Martin, a vet and head of welfare at Inspiring Vet Care, said owners had followed standard advice yet still encountered problems on unusually warm days. He reported that rabbits in hutches and runs had also been affected when shade was limited.

Reported incidents Inspiring Vet Care recorded 355 suspected heatstroke incidents in 2025, a 28% increase from 2024, with 66% occurring during summer months. Nelson advised keeping homes cool by closing curtains during the day and opening windows when outside temperatures fall.

She recommended replacing physical walks with indoor mental activities such as scent games during extreme heat. Martin suggested providing ample water, using fans, and wetting pets with a hose or sprinkler to aid cooling.