What Temperature Should a Hot Tub Be? | Bullfrog Spas (2024)

What Temperature Should a Hot Tub Be?

For centuries, people have soaked in hot water to help them feel better, relieve pain, and get rid of stress. Today, hot tubs provide the perfect place to relax in hot water while experiencing soothing jets and family bonding time.

However, If you’re a new hot tub owner, you may not know what temperature your hot tub should be.

Hot tub temperatures range anywhere from 90ºF to 104ºF. 104ºF is the standard max temperature for most hot tubs. Depending on your preference, your age, and your health, you should keep your hot tub at a different temperature within that range.

Learn the best hot tub temperatures for each situation below.

The Ideal Hot Tub Temperature for Relaxing

Most hot tub users find that the perfect temperature is between 100-102 degrees Fahrenheit. However, some like the water to be body temperature at 98 degrees, and some like it hotter–up to 104 degrees.

Test out a few temperatures and see what you like best. Nothing is better than finding that “just right” feeling in a hot tub.

It’s also common for hot tub owners to change the spa temperature depending on the time of the year. Below are how some examples for winter and summer.

Hot tub temperature in winter

Although definitely not a requirement, many spa owners like to increase the temperature during cold winter months.

For example, John, a Bullfrog Spa owner, likes the drastic difference between the water and air temperature. He says it’s “great therapy to go from a 104 degree spa to 20 degree air temperature.”

Others, such as Chris from Colorado, like a more mild change. He says, “We keep the spa at 101 degrees in winter and 99 degrees in the summer.”

Hot tub temperature in summer

If you live in an extra hot climate, consider dropping the temperature a bit during the summer and see what you think. Keeping your spa temperature below 98 degrees can be refreshing while still providing the warm water that makes you feel so relaxed.

Don F. says, “I actually like it about 95-97 degrees in the summer.”

Safe Hot Tub Temperature

It’s important to stay safe while enjoying the benefits of a hot tub.The CPSC advises to never exceed 104 degrees in your hot tub. Temperatures of 106 degrees or higher can potentially lead to heat stroke.

For your safety, your Bullfrog Spa will not allow you to set a temperature above 104 degrees.

Keep in mind that your age and health can also change the safe temperature zone. Here are a few factors to consider:

For kids

If kids will be using the hot tub, the recommended temperature is around 95 degrees or less so they don’t overheat. And don’t let children stay in the spa for more than 15 minutes at a time.

Bullfrog Spas also recommends having children sit in the provided child or “cool down” seats that aren’t as deep in the water.

For older adults

If you suffer from any health issues, especially heart problems, consult your doctor before using a spa. Your doctor may recommend relaxing at a lower temperature. It’s also important to stay hydrated, so keep a bottle of water nearby.

When pregnant

In addition, you should consult your doctor before using a hot tub if you are pregnant. Never exceed a temperature of 101 degrees and limit the amount of time you spend in the hot water.

Hot tubs can be a great way to relax and improve your life. Download the hot tub health benefits guide to learn more about what a hot tub can do for you.

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What Temperature Should a Hot Tub Be? | Bullfrog Spas (1)

What Temperature Should a Hot Tub Be? | Bullfrog Spas (2024)

FAQs

What Temperature Should a Hot Tub Be? | Bullfrog Spas? ›

a. Water temperature in a spa should never exceed 104˚F (40˚ C). Water temperatures between 100˚ F (38˚C) and 104˚F (40˚C) are considered safe for a healthy adult.

What is the perfect temperature for a hot tub? ›

Set temperature at or below 104 °F degrees for adults.

The US Consumer Product Safety Commission has determined that temperatures above 104 °F (40 °C) are dangerous for adults because they can lead to heatstroke. For a comfortable soak, most people set their hot tub between 100 °F and 102 °f (37.5 °C - 39 °C).

Is 90 Degrees Hot enough for hot tub? ›

So the quick answer to the question "how hot should a hot tub be?" is 37-40°C (98-104°F).

Is 120 degrees to hot for a hot tub? ›

Most new hot tubs will not heat past 104º F, a limit recommended by the Centers for Disease Control in Atlanta. This plateau keeps us safe from the discomfort and pain threshold that some folks experience in water that is between 106º and 108º.

What should body temp be in a hot tub? ›

Studies have shown that immersion in a spa maintained at 104 degrees can raise the core body temperature to 102 degrees Fahrenheit in less than 20 minutes.

What temperature should I keep my hot tub when not in use? ›

Generally, you should set the temperature of your hot tub to between 98 and 104 degrees Fahrenheit (36 and 40 degrees Celsius), even when not using it. However, if you plan to be away or know you won't use it for up to six weeks, lower the temperature to around 50 degrees Fahrenheit (10 degrees Celsius).

What temperature should a hot tub be for seniors? ›

The ideal temperature for seniors is about 36°C or 100ºF, not exceeding 39°C or 102ºF. Although a nice bubbling hot soak can be a great idea to help reduce pain, you should always consult your medical professional before you use a hot tub.

What is the lowest temperature you can keep a hot tub at? ›

The maximum temperature of any given hot tub is almost always 104 degrees. On the other hand, most hot tubs have a minimum temperature of about 85 or 90 degrees. There are exceptions, though. Some hot tubs, such as those which use AnyTemp® spa technology, can reach temperatures as low as 62 degrees.

What is an unsafe hot tub temperature? ›

Hot tub water temperatures should never exceed 104 degrees Fahrenheit. A temperature of 100 degrees is considered safe for a healthy adult. Special caution is suggested for young children. Excessive drinking during hot tub use can cause drowsiness which could lead to unconsciousness and subsequently result in drowning.

Should I turn the hot tub down at night? ›

Get A Quote Today: 713-777-7665. What is the right hot tub temperature when not in use? A rule of thumb is that the temperature should be at least 5 degrees lower than when in use. It is necessary to keep it at lower temperatures when it's not in use so that energy consumption isn't too high.

What is a hot tub lung? ›

The hot tub lung is a unique granulomatous lung disease caused by MAC contaminating the man made hot water reservoirs like hot water tubs and Spas.

Is 110 enough for a hot tub? ›

An 110V tub can keep water warm, and it can power jets. But it can't always do both at the same time, and it can't do that as fast as or as powerful as a 220V hot tub can in any case. A plug-and-play tub can take about three to four times as long to get to the same level of heat as a 220V tub.

What temperature should a spa be set at? ›

However, the maximum temperature most spas have is 40 degrees Celsius (104F). This is for health and safety reasons. If you have an outdoor spa, the recommended temperature setting is around 36-37 degrees Celsius (96-98F).

What is the perfect hot tub temperature? ›

The Ideal Hot Tub Temperature for Relaxing

Most hot tub users find that the perfect temperature is between 100-102 degrees Fahrenheit. However, some like the water to be body temperature at 98 degrees, and some like it hotter–up to 104 degrees.

What is the best temperature for a hot tub for muscles? ›

Start at around 100 degrees Fahrenheit and go from there. A water temperature between 94 and 96 degrees is best to reduce tension. A higher water temperature between 102 and 104 degrees can loosen tight muscles and reduce pain. And anything above 104 degrees is not recommended.

How long is it safe to stay in a 100 degree hot tub? ›

If the water temperature is between 95-100° F, you should be able to stay in hot tubs for 30 minutes. You might be able to enjoy a longer soak if the ambient temperature is on the cool side. It's generally recommended that you spend no more than three-quarters of an hour to an hour in hot tubs.

Is 93 too cold for hot tub? ›

Some will go to as low as 98F, but going much less than that, let's say to around 93-94F (34C) means you're nearing the lowest recommended hot tub temperature, despite temperatures that still sound warm.

Is 120 degree water hot? ›

The EPA recommends 120 degrees because it's hot enough to keep diseases at bay, it's not hot enough to cause scalding, will supply enough hot water for most small families, and is relatively energy-efficient. However, the best setting for you could vary based on a few factors.

Is 80 degrees cold for a hot tub? ›

If you have not winterized your spa and won't be using your hot tub for extended periods during the coldest months, the very lowest you should set your hot tub temperature is 80° F. This will prevent your hot tub from freezing.

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