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Hot weather pet safety

Quick answer

In UK heatwaves, walk dogs at dawn or dusk, **never leave pets in cars**, and keep rabbits and guinea pigs in shade. Heatstroke is an emergency for every species. Check is it too hot to walk your dog? before a midday outing. Keep dogs out of water with blue-green algae — it can be fatal.

Key takeaways

  • Never leave pets in cars. Walk dogs at dawn or dusk; skip hot tarmac. Heatstroke is an emergency for every species.
  • Rabbits and guinea pigs overheat in sunlit hutches; check for flystrike twice daily in warm weather.
  • Blue-green algae can kill dogs within hours — no swimming or drinking from pea-soup water.

The full guide

Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.

Frequently Asked Questions

What are signs of heatstroke in dogs?
Heavy panting, drooling, collapse, vomiting, bright red gums, or uncoordinated movement. Heatstroke is an emergency — cool with tepid (not ice-cold) water and contact a vet immediately.
Can I leave my dog in a car on a warm day?
Never. UK car interiors reach lethal temperatures within minutes even with windows cracked. Call 999 if you see a dog in distress in a hot car.
Are rabbits at risk in summer?
Yes. Rabbits overheat above roughly 25°C and are at high risk of flystrike if rear fur becomes soiled and damp. Move hutches to shade, provide frozen water bottles, and check twice daily.

When it can’t wait, call your vet. Breathing difficulty, collapse or suspected poisoning need urgent advice.

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