The best hot tub temperature depends on the weather, your comfort level, and who will be using the spa. Some people enjoy a deeply warm soak, while others prefer gentler heat or cooler water during the summer.
Whatever setting you choose, your hot tub should never exceed 104°F.
How Hot Can a Hot Tub Get?
MyHotTub models offer temperature settings up to 104°F. Available ranges vary by model and control system, so consult your owner’s manual for the exact limits.
The CDC and U.S. Consumer Product Safety Commission advise that hot tub water should not exceed 104°F.
Remember that 104°F is the maximum—not the recommended setting for every user.
What Is the Best Hot Tub Temperature?
Many healthy adults find temperatures between 98°F and 100°F comfortable. If you prefer a warmer soak, increase the setting gradually while remaining below the 104°F maximum.
A good starting point is 100°F. Adjust the temperature one degree at a time until it feels comfortable.
Your preference may also change with the seasons. Warmer water can feel relaxing on a cold winter evening, while a lower setting may be more enjoyable during summer.
Leave the spa immediately if you feel dizzy, nauseated, weak, sleepy, overheated, or otherwise uncomfortable. Avoid alcohol before and during hot tub use because it can increase the risk of unconsciousness and drowning.
Can You Use a Hot Tub as a Cool Tub?
MyHotTub control systems allow temperatures as low as 80°F, making the spa more comfortable during warm weather.
Lowering the set temperature does not actively chill the water. It only prevents the heater from warming the spa above that setting. Cooling time will depend on:
- Outdoor temperature
- Sun exposure
- Wind and weather
- Starting water temperature
- Spa location and insulation
A hot tub will not cool like a refrigerated cold plunge, but a lower setting can provide a refreshing place to relax during the summer.
What Temperature Is Safe for Children?
The CDC advises that children younger than five should not use hot tubs.
Children age five and older are still more sensitive to heat than adults. Keep the temperature lower, make visits brief, and provide constant, close adult supervision. A child’s ability to stand on the bottom does not eliminate the risks of drowning or overheating.
Children should leave the spa immediately if they feel hot, dizzy, tired, nauseated, or uncomfortable. Ask a pediatrician before allowing a child with a medical condition to use a hot tub.
Infants should never be placed in a hot tub.
Can You Use a Hot Tub While Pregnant?
Anyone who is pregnant or may be pregnant should consult a healthcare professional before using a hot tub.
Hot water can raise core body temperature. The American College of Obstetricians and Gynecologists advises avoiding hot tubs early in pregnancy because overheating may be harmful to the developing fetus.
A lower temperature or shorter soak does not automatically make hot tub use safe during pregnancy. Follow the advice of your prenatal healthcare provider.
What Temperature Is Best for Relaxation?
Many people find temperatures between 98°F and 100°F comfortable for relaxing with the massage jets. Hotter water does not necessarily provide a better experience and may make it more difficult to remain comfortable.
Warm water and jets may feel soothing after everyday activity, but a hot tub is not a substitute for medical treatment. Consult a healthcare professional before using your spa for an injury, chronic pain, cardiovascular condition, or another health concern.
Find the Temperature That Works for You
For many adults, approximately 100°F is a comfortable place to begin. Adjust the setting gradually according to the weather and your personal preference, and never exceed 104°F.
Children younger than five should not use hot tubs, and anyone who is pregnant or has relevant health concerns should seek medical guidance first.
If you need help adjusting your spa’s temperature or understanding its control settings, consult your MyHotTub owner’s manual or contact our Customer Service team.
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