The ideal water temperature for a cat's bath is generally between 38℃ and 40℃. This range is similar to human bath water temperature, as cats' normal body temperature is around 37.5℃ to 39.5℃, slightly higher than humans. For accuracy, pet owners can use a thermometer to measure the water's ambient temperature before bathing their cat to avoid it being too cold or too hot.

Of course, after bathing your cat, you must make sure to keep your cat warm and avoid sudden temperature changes that could cause them to catch a cold, which would be counterproductive.