Winter Home-Alone Care for Cats: what should I do first?

In winter, aim for a room temperature of about 22–25°C (72–77°F) for adult cats and about 24–27°C (75–81°F) for kittens, seniors, and super seniors, with 50–60% humidity. Warm air rises to the ceiling and the floor stays cold, so check with a thermometer-hygrometer placed at the height where your cat sleeps (about 15 cm [6 in] above the floor). Cats move less in winter and the water gets cold, so they tend to drink less. Drinking less makes urine more concentrated and raises the risk of cystitis and urinary stones, so add moisture with lukewarm water, extra water stations, and wet food. The basic setup for heating while you are out is the air conditioner plus a bed where your cat can choose their own temperature. Lay a pet heater under only half of the bed to leave an escape zone, and always switch off human heated tables, electric heaters, and electric blankets before you leave.

What should I avoid doing?

Leaving a human heated table or electric blanket on while your cat is home alone (a cat who stays tucked inside for hours can develop heatstroke, dehydration, or low-temperature burns). / Leaving an exposed electric heater (such as a halogen or carbon heater) running while you are out (a cat who gets too close can singe their fur or tail, or knock it over and start a fire). / Putting a disposable heat pack or hot water bottle directly in your cat's bed before you leave (long contact with something at around 44°C [111°F] can cause low-temperature burns; always wrap a hot water bottle in a towel and use it only when someone is home).

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Keeping Your Cat Warm When Home Alone in Winter: Temperature & Heaters

🚨 Check first

When several things overlap while your cat is home alone in winter—the air conditioner's timer shuts off and the room gets cold, the water is too cold to drink, or a human heated table or heater is left on—kittens and senior cats are more likely to develop hypothermia, dehydration, or low-temperature burns. If your cat feels cold and limp when you get home, or has not peed for half a day or longer, contact your vet right away.

📌 The answer in 3 seconds

In winter, aim for a room temperature of about 22–25°C (72–77°F) for adult cats and about 24–27°C (75–81°F) for kittens, seniors, and super seniors, with 50–60% humidity. Warm air rises to the ceiling and the floor stays cold, so check with a thermometer-hygrometer placed at the height where your cat sleeps (about 15 cm [6 in] above the floor).
Cats move less in winter and the water gets cold, so they tend to drink less. Drinking less makes urine more concentrated and raises the risk of cystitis and urinary stones, so add moisture with lukewarm water, extra water stations, and wet food.
The basic setup for heating while you are out is the air conditioner plus a bed where your cat can choose their own temperature. Lay a pet heater under only half of the bed to leave an escape zone, and always switch off human heated tables, electric heaters, and electric blankets before you leave.

📊 Flowchart

Step 1Before you leave, set the air conditioner in the room where your cat stays to heat at about 22–25°C (72–77°F) (about 24–27°C [75–81°F] for kittens and seniors), and make sure the timer will not switch it off. If the air is dry, keep humidity at 50–60% with a humidifier or by drying laundry indoors.
Step 2Add 2–3 water stations right near the living room and the beds where your cat often sleeps, and for cats who dislike cold water, fill them with lukewarm water at about skin temperature (35–38°C [95–100°F]) just before you leave. Mix wet food into dry food or pour a little lukewarm water over it so your cat also gets water from meals.
Step 3Lay a pet heater or heating pad under only half of the bed, leaving an escape zone your cat can move to when they get too warm. Wrap the power cord in a chew-proof protective cover, and also set out a dome bed or blanket your cat can burrow into so there is a warm spot that does not rely on electricity.
Step 4Before you go out, switch off every human heated table, electric heater, and electric blanket. Lift the heated table's blanket slightly so heat does not build up inside.

⭕ Step-by-step fix

Step 1 · What you can do at home right now
Before you leave, set the air conditioner in the room where your cat stays to heat at about 22–25°C (72–77°F) (about 24–27°C [75–81°F] for kittens and seniors), and make sure the timer will not switch it off. If the air is dry, keep humidity at 50–60% with a humidifier or by drying laundry indoors.
Step 2
Add 2–3 water stations right near the living room and the beds where your cat often sleeps, and for cats who dislike cold water, fill them with lukewarm water at about skin temperature (35–38°C [95–100°F]) just before you leave. Mix wet food into dry food or pour a little lukewarm water over it so your cat also gets water from meals.
Step 3
Lay a pet heater or heating pad under only half of the bed, leaving an escape zone your cat can move to when they get too warm. Wrap the power cord in a chew-proof protective cover, and also set out a dome bed or blanket your cat can burrow into so there is a warm spot that does not rely on electricity.
Step 4
Before you go out, switch off every human heated table, electric heater, and electric blanket. Lift the heated table's blanket slightly so heat does not build up inside.

❌ Never do this

Leaving a human heated table or electric blanket on while your cat is home alone (a cat who stays tucked inside for hours can develop heatstroke, dehydration, or low-temperature burns).
Leaving an exposed electric heater (such as a halogen or carbon heater) running while you are out (a cat who gets too close can singe their fur or tail, or knock it over and start a fire).
Putting a disposable heat pack or hot water bottle directly in your cat's bed before you leave (long contact with something at around 44°C [111°F] can cause low-temperature burns; always wrap a hot water bottle in a towel and use it only when someone is home).

📋 Make notes for the vet

Your notes save automatically on this device, so they stay even without a signal at the clinic.

Your cat

Since when

Symptoms and things to tell the vet

A rough idea of how much water your cat drinks a day (check how much goes down between morning and night, and whether it dropped suddenly once winter began).
How often your cat pees and the size of the clumps (peeing more often, passing small amounts again and again, or blood in the urine may mean cystitis).
How cold the ear tips and paw pads feel when you get home, and whether your cat seems limp.

Urine

Stool

Photos and items to bring

Notes (breathing rate, amount eaten, times, etc.)