Outdoor guinea pig hutches and runs in Australia
How to house guinea pigs outdoors safely in Australia: hutch and run size, shade, heat, predators like foxes and snakes, and what to look for when buying.
Many Australian guinea pigs live happily outdoors, but our climate makes it harder than in cooler countries. RSPCA Australia says guinea pigs can be kept indoors, outdoors or both, as long as they’re protected from temperature extremes, predators and loud noise.
RSPCA Australia notes that guinea pigs are comfortable only from about 18°C to 23°C, that heat stress can occur from as low as 24°C, and that it is most common above 28°C. On hot days, outdoor guinea pigs should be brought inside to a cool room. Read our summer heat guide.
Hutch plus run: what size?
RSPCA Australia recommends an enclosure with a shelter and an attached run. As a rule of thumb:
- The enclosed, weatherproof hutch alone should meet the floor-space guidance for your group: about 1 m² for a pair (see the size guide).
- The run is extra space for grazing and exercise. Bigger is better.
- Choose hutches with a large ground-level floor. Many “two-storey” hutches have small floors connected by steep ramps.
What to look for in an outdoor hutch
- Full shade all day in summer: under a verandah or dense tree, never in the afternoon sun
- Predator-proof mesh (not chicken wire) and secure latches that foxes, cats, dogs and birds of prey can't open
- Solid, raised hutch floor that stays dry. Avoid wire floors, which RSPCA Australia links to sore feet (bumblefoot)
- Snake-aware design: fine mesh and no gaps, especially in rural and bushland areas
- Weatherproof roof and sides for wind and rain, with good ventilation
- Easy access for daily spot-cleaning and health checks
Seasonal tips for Australian yards
- Summer: move the hutch to the coolest spot, add frozen water bottles wrapped in a towel, and bring pigs inside when it’s forecast to reach 28°C or more.
- Winter: in cold areas such as Canberra, Tasmania and Victoria’s high country, cover part of the hutch at night, add extra hay for burrowing, and keep bedding dry.
- Wet season: make sure the run drains well and the hutch floor never sits in water.
- Flystrike and pests: keep bedding clean and dry and check bottoms daily in warm weather.
Indoor or outdoor?
If you can offer a cool indoor space, many owners find guinea pigs are easier to keep comfortable inside, with supervised outdoor grazing on mild days. See our indoor vs outdoor guide to decide.
Use our comparison table to see how outdoor hutches stack up against indoor options.
Want a properly sized cage without the DIY?
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This guide is general information to help you compare housing options. It isn't veterinary advice. If your guinea pig seems unwell, contact a vet experienced with exotic pets.
