Final answer:
The safe maximum temperature for baby bath water is 37 degrees Celsius, which is close to the average normal human body temperature.
Step-by-step explanation:
Bath water for a baby should be set no higher than 37 degrees Celsius. This temperature is close to the average normal body temperature, which is usually given as 37.0°C (98.6°F), and is considered safe for bathing infants to prevent scalding and overheating. It is important to always check the temperature with a reliable thermometer before placing a baby in the bath, as their skin is much more sensitive than that of an adult.