How to keep cats cool during a UK heatwave

When the temperature rises, most of us reach for an ice cream, switch on the fan and look for the nearest patch of shade. But what about our cats?

Despite their love of sunbathing, cats can quickly become uncomfortable and even dangerously overheated during a UK heatwave. Unlike humans, they can't cool themselves efficiently through sweating, making it even more important for cat parents to help them stay safe.

Whether your cat spends their days stretched across the windowsill or curled up under the bed, here are our top tips for keeping them cool when the weather heats up.

Can cats get too hot?

Yes, they absolutely can.

While cats naturally seek out warm spots, prolonged exposure to high temperatures can lead to dehydration, heat stress or, in severe cases, heatstroke.

Older cats, kittens, overweight cats, flat-faced breeds (such as Persians), and cats with underlying health conditions are particularly vulnerable.

1. Make sure fresh water is always available 

Hydration is one of the most important ways to help your cat cope with hot weather.

Try:

  • Placing multiple water bowls around your home.
  • Adding ice cubes to keep water cooler for longer.
  • Using ceramic or stainless steel bowls, which stay cooler than plastic.
  • Trying a cat water fountain if your cat prefers running water.

2. Create cool places to rest

Cats are experts at finding the coolest spot in the house, but you can help by:

  • Closing curtains or blinds in sunny rooms.
  • Leaving access to tiled bathrooms or kitchens.
  • Using cooling mats designed specifically for pets.
  • Keeping rooms well ventilated.

Never force your cat onto a cooling mat if they don't want to use it—they'll choose the temperature they're most comfortable with.

3. Brush your cat regularly

Removing excess loose fur helps improve airflow through your cat's coat.

Long-haired breeds especially benefit from gentle daily brushing during warmer months.

Avoid shaving your cat unless specifically advised by a vet, as their coat also helps protect them from sunburn and regulates body temperature.

4. Offer frozen treats 

A little frozen enrichment can help your cat cool down while keeping them entertained.

Ideas include:

  • Frozen lickable cat treats.
  • Ice cubes made from low-salt tuna water (offered occasionally).
  • Chilled wet food straight from the fridge.

Always introduce new treats gradually and avoid anything containing ingredients that are unsafe for cats.

5. Let them choose where they sleep

You may notice your cat suddenly abandoning their favourite fluffy bed.

That's perfectly normal.

During hot weather many cats prefer:

  • Bathroom tiles
  • Kitchen floors
  • Under beds
  • Shaded corners
  • Sinks or bathtubs

It's their way of regulating their temperature.

6. Keep indoor cats comfortable

Indoor cats may struggle more if your home traps heat.

Consider:

  • Opening windows safely with secure restrictors.
  • Running fans to improve airflow (not directly at your cat).
  • Keeping the coolest room accessible throughout the day.

7. Avoid vigorous play during the hottest part of the day

Save energetic games for early morning or late evening when temperatures are lower.

Cats naturally become less active in hot weather, so don't worry if they're sleeping more than usual.

8. Never leave cats in conservatories or hot rooms

Conservatories and sunrooms can become dangerously hot very quickly.

Always make sure your cat has access to cooler parts of the house, especially if you're going out.

9. Watch for signs of heatstroke 

Heatstroke is a veterinary emergency.

Contact your vet immediately if your cat shows signs such as:

  • Heavy or rapid breathing
  • Panting (unusual in cats)
  • Drooling
  • Lethargy or weakness
  • Bright red gums
  • Vomiting
  • Stumbling or collapse

While travelling to the vet, move your cat somewhere cool and offer small amounts of water if they're able to drink.

10. Help outdoor cats too

If your cat enjoys exploring outside:

  • Make sure they can always get back indoors.
  • Provide fresh water outdoors if possible.
  • Encourage them inside during the hottest part of the afternoon.

Many outdoor cats naturally choose to rest in shaded areas until temperatures drop.

11. Be careful around open windows

Many of us open windows wider during a heatwave, but this can pose a risk.

Cats can fall from upper floors or squeeze through surprisingly small gaps.

Window restrictors or secure screens are a much safer option.

12. Let your cat set the pace

Perhaps the most important tip of all: don't expect your cat to behave normally during a heatwave.

Sleeping more.
Eating slightly less.
Moving more slowly.

These are all common ways cats conserve energy when it's hot.

As long as they're drinking, staying alert and showing no signs of illness, a lazy summer cat is usually a perfectly happy one.

Cats may look effortlessly relaxed while stretched out in a sunny patch, but even our sun-loving companions need a helping hand when temperatures soar.

A few simple changes, plenty of fresh water, cool resting places and keeping an eye out for signs of overheating, can make all the difference during a heatwave.

After all, keeping our cats safe and comfortable means they can get back to doing what they do best: napping, purring and ruling the house.

Stay cool out there!

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