Hello from Greycoat Research,

When caring for a cat with chronic kidney disease,
most guardians focus on diet, supplements, and fluid therapy.

But during winter, one environmental factor often influences daily stability more than expected.

That factor is indoor temperature.

Indoor temperature directly affects kidney blood flow, body temperature regulation, appetite, and overall daily condition in CKD cats.

The ideal indoor temperature for CKD cats

The ideal indoor temperature for CKD cats is 24–25°C (75–77°F).

This range supports

• stable body temperature,
• consistent kidney blood flow,
• and the most reliable appetite and activity levels.

It provides the safest thermal environment for cats receiving kidney care during the winter.

When temperature becomes too low

In colder environments, blood vessels constrict and circulation decreases, reducing blood flow to the kidneys.

For kidneys with already reduced function, this change can easily make a cat’s condition unstable and lead to fluctuations in lab results.

Energy consumption increases to maintain body temperature, muscle loss may accelerate,
and appetite often begins to decline.

Nighttime temperature drops and cold air near windows or floors can further cool the abdomen and joints, leading to discomfort and reduced activity.

When temperature becomes too high

Excessive warmth also places stress on CKD cats.

Breathing and heart rate increase, metabolic burden rises, and energy needed for kidney support is diverted elsewhere.

Reduced appetite, lower activity, and electrolyte imbalance become more likely.

Why temperature stability matters more than warmth

The greatest risk for CKD cats is not cold air itself,
but repeated temperature fluctuations throughout the day.

Warm daytime heating, rapid cooling at night, and the lowest temperatures before dawn
create continuous stress on circulation and temperature regulation.

What matters most is
keeping indoor temperature stable throughout the entire day.

Practical temperature management tips

• Maintain indoor temperature at 24–25°C (75–77°F)
• Avoid turning heating completely off at night
• Prevent rapid cooling when leaving the house
• Use timers or automatic temperature control
• Measure temperature where your cat actually rests

In winter CKD care, temperature is not simply a matter of comfort.

It directly affects kidney blood flow, body temperature regulation, appetite, and daily stability.

Maintaining a stable indoor temperature each day forms the foundation of long-term kidney support.

Greycoat Research