Heatwave: keeping rodents cool at home
In a heatwave, keeping rodents cool is not a comfort but a matter of survival: unable to sweat, hamsters, guinea pigs, rats and chinchillas face a risk of heatstroke from 26 to 28 °C, and much earlier for the chinchilla. Here is the complete action plan for the home.
Where should the cage go during a heatwave?
In the coolest room: north-facing, on the ground floor, or even a tiled bathroom. Shutters closed by day, windows open at night. Move the cage out of any conservatory, attic or room directly under the roof. Since the floor is cooler than higher up, set the cage down on the tiles. The chinchilla requires the coldest room in the home, air-conditioned if necessary.
Which cooling accessories actually work?
- A granite slab or ceramic tile (0 to 10 €): the animal stretches out on it to shed heat.
- Frozen water bottles wrapped in a tea towel, placed against or on the cage, swapped every 3 to 4 hours.
- A damp cloth draped over part of the cage (never all of it: ventilation!).
- A fan used indirectly: circulate the air in the room, never a direct stream onto the animals.
- An air conditioner or evaporative cooler: the only real solution during prolonged spells above 30 °C, targeting 22 to 24 °C.
How should you adapt water and food?
Double the water points (bottle + heavy bowl), change the water twice a day, serve it cool but not ice-cold. Offer water-rich vegetables: cucumber, courgette, a little watermelon. Cut back on handling and outings during the hottest hours; for unavoidable journeys, follow our guide to transport in hot weather.
Which signs demand immediate action?
Lethargy, open-mouthed breathing, drooling, a damp chin, scarlet ears: cool the animal gradually (lukewarm then cool cloths on paws and ears) and contact an exotics vet urgently. Never plunge the animal into cold water. Find our tested equipment in the travel and safety category and on the rodent hub.
Frequently asked questions
From what temperature should I start worrying?
Above 26 °C, put the cooling measures in place; above 30 °C in the room, the situation becomes dangerous for all species.
Can I put ice cubes in the water bottle?
One or two cubes to keep the water cool, yes; continuously ice-cold water, no — it can cause digestive upsets.
Is a mister a good idea?
Not for the animals (damp fur + heat = skin maceration), but possibly to cool the air of the room at a distance from the cages.
This guide is part of Planète Pets’s Rodents universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.