Keeping Rabbits & Guinea Pigs Cool in a UK Heatwave

UK summers can be changeable, but when a warm spell hits, it can feel intense for rabbits and guinea pigs. They don’t cool down the way we do, so a little preparation goes a long way. This guide focuses on simple, sensible steps you can take at home to reduce heat stress and keep daily care feeling manageable.

Why warm weather can be risky for small animals

Rabbits and guinea pigs can overheat quickly, especially in enclosed hutches, runs with poor airflow, or areas that get direct sun for part of the day.

• They can’t sweat to cool down.
• They may hide discomfort until they’re really struggling.
• Long fur, older age, excess weight, and stress can increase risk.

Start with housing: shade, airflow, and smart positioning

Your biggest wins usually come from improving the environment. If you use hutches, runs, or indoor pens, aim for steady shade and good ventilation throughout the day.

• Move housing out of direct sun (morning sun can be surprisingly strong).
• Avoid fully covering runs with plastic or tarps that trap heat.
• Create shaded zones while keeping airflow (for example, a light sheet clipped above part of the run).
• Add a cool resting spot such as a ceramic tile or slate.

If you’re reviewing your set-up for summer, it can help to browse Small Animal Housing for shade-friendly layouts and practical upgrades.

Cooling aids that are safe (and what to avoid)

Think “cool options” rather than forcing cold directly onto your pet.

• Wrap a frozen water bottle in a towel and place it beside a sleeping area (not on top of your pet).
• Offer a cool hide: a cardboard box with a tile inside can work well.
• Use a fan to circulate air in the room, but don’t point it directly at your pet’s face or at close range.

Avoid: unwrapped ice packs, spraying/misting your pet, or sudden temperature swings (for example, moving from hot outdoors to a very cold room quickly).

Water and feeding: small tweaks that help

Hydration matters, but some pets drink less than you’d expect in heat. Make water easy and appealing.

• Offer both a bottle and a heavy bowl if possible.
• Refresh water at least twice daily during hot spells.
• Keep water in the coolest part of the enclosure, out of sun.

Keep hay available at all times, and offer fresh greens in sensible portions (removing anything left behind so it doesn’t wilt). If you’re topping up supplies, you can browse Rabbit Food and Guinea Pig Food for everyday staples.

Don’t forget hygiene in summer

Warm weather can make enclosures smellier faster, and damp corners can attract flies. A quick daily check helps you stay ahead.

• Remove soiled bedding daily (especially toilet corners).
• Check for damp fur or a messy bottom and address promptly.
• Remove leftover fresh foods before they spoil.

It’s worth keeping extra Small Animal Bedding on hand so you can do fast swaps during hot spells.

When to contact a vet (clear safety note)

If you suspect your rabbit or guinea pig is overheating, it’s safest to contact your vet urgently. Heat stress can escalate quickly.

• Fast or heavy breathing
• Marked lethargy or weakness
• Not eating or reduced droppings
• Wobbliness, collapse, or seizures (emergency)

While you’re arranging help, move them to a cooler area and offer water. Avoid extreme cooling methods unless your vet advises them.

With a few calm adjustments, most pets cope much better through warm UK weather. If you’d like to get set up for summer, have a browse of our Small Animal Accessories & Toys and Small Animal Housing collections, and consider joining our email list for seasonal tips and updates.