What is the maximum safe temperature for spa water?

The maximum safe temperature for spa water is 104 degrees Fahrenheit. This limit is established primarily for health and safety reasons, as water temperatures above this level can increase the risk of heat-related illnesses such as heat exhaustion or heat stroke. At 104 degrees, the body's core temperature can rise significantly, potentially leading to a dangerous situation, especially for individuals with certain medical conditions or those who are pregnant.

Maintaining spa water at or below this temperature helps ensure a comfortable and safe environment for users while allowing them to receive the benefits of hydrotherapy without compromising their health. It's also important to note that public health guidelines often recommend this maximum limit to protect bathers, reinforcing that safety should always be the top priority in spa operation and management.