Small Pet Health
Guinea Pig Winter Care UK — Keeping Cavies Warm
By Kaiser Khan, EditorPublished Last updated 1 min read
Quick answer
Guinea pigs belong indoors in UK winter. Outdoor hutches are unsafe in cold and damp. Provide deep hay, hideaways, and a draft-free room at stable household temperature. Sneezing, lethargy, or not eating needs same-day vet care.
Key takeaways
- No — guinea pigs should be housed indoors in the UK. They tolerate cold poorly and can develop respiratory illness or hypothermia in outdoor hutches.
- They are comfortable around 17–20°C indoors. Prolonged exposure below roughly 15°C without warm dry bedding increases illness risk — keep them in a heated home.
- Draft-free room, deep hay bedding, hide houses, bonded pairs huddling, and avoid placing cages on cold floors or next to single-glazed windows.
Why outdoor winter fails
According to the RSPCA and PDSA, guinea pigs are not suited to outdoor hutches in UK winter. They come from mild climates, and frost, damp, and wind can lead to respiratory illness and hypothermia much faster than in rabbits.
Indoor setup
- Cage off cold floor — raise on stand
- Avoid direct heat from radiators (overheating risk)
- Deep hay for nesting and digestion
- At least two guinea pigs for social warmth
Warning signs
- Sneezing or nasal discharge
- Shivering, hunched posture
- Reduced appetite — vet same day
Affiliate links · Advertising
Winter kit for rabbits and guinea pigs
These are Amazon searches, not recommendations — the cover, water and bedding basics this guide describes for cold weather.
These links open Amazon searches for a general category of item — they are not recommendations of a particular product or brand. Links are marked * because if you buy something after following one we may receive a small commission at no extra cost to you. We have not tested these items, and we cannot see prices or reviews from here. Nobody pays to appear in this section. How we make money
Insulated water bottle cover
Slows a drinking bottle from freezing overnight, though you still need to check it morning and evening.
Search on Amazon*Opens amazon.co.uk in a new tab
Waterproof hutch cover
Keeps wind and rain off an outdoor hutch while leaving a gap for air.
Search on Amazon*Opens amazon.co.uk in a new tab
Small animal hideaway
A hide filled with deep hay gives rabbits and guinea pigs a draught-free place to huddle.
Search on Amazon*Opens amazon.co.uk in a new tab
As an Amazon Associate I earn from qualifying purchases. PETHEALTH+ is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk.
Sources & further reading
This guide draws on the publicly available UK advice listed below. Follow the links for the relevant guidance or the organisation's broader care resources.
PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Editorial sources and further reading (last updated 2026-06-25).
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Frequently Asked Questions
- Can guinea pigs live outside in winter UK?
- No — guinea pigs should be housed indoors in the UK. They tolerate cold poorly and can develop respiratory illness or hypothermia in outdoor hutches.
- What temperature is too cold for guinea pigs?
- They are comfortable around 17–20°C indoors. Prolonged exposure below roughly 15°C without warm dry bedding increases illness risk — keep them in a heated home.
- How do I keep guinea pigs warm indoors?
- Draft-free room, deep hay bedding, hide houses, bonded pairs huddling, and avoid placing cages on cold floors or next to single-glazed windows.