What Temperature Should a Sauna Be?

On this page (7 sections)

1. What temperature should a sauna be set at?
2. How hot is too hot for a sauna?
3. Why can the temperature feel different from the display?
4. Does a traditional sauna need a different setting from an infrared sauna?
5. How does heater size affect sauna temperature?
6. How can you find a comfortable sauna temperature?
7. What temperature should you choose for your sauna?

A traditional sauna is commonly set around 150°F to 195°F, while an infrared sauna usually runs cooler, around 120°F to 150°F. Start at the lower end and follow your heater and cabin instructions, since room design and comfort affect the right setting.

The number on a control doesn't tell the whole story. Thermometer position, heater type, airflow, and how long the room has warmed can all affect what you feel.

What temperature should a sauna be set at?

For many traditional saunas, about 150°F to 195°F is a useful starting range. Use the cabin and heater instructions as your guide, and choose a setting that feels comfortable rather than aiming for the highest number.

Traditional heaters warm the air and stones. In a dry sauna, pouring water on stones can add a short burst of humidity and change how the heat feels, even if the displayed temperature stays the same.

Infrared saunas usually use lower air temperatures, often around 120°F to 150°F. The heating method differs, so don't compare the control settings of an infrared cabin and a traditional sauna as if they measure the same experience.

For more on how those rooms differ, read dry sauna vs. steam room. A steam room has a much wetter environment, so its heat and upkeep are different.

How hot is too hot for a sauna?

A sauna is too hot for you when the heat feels uncomfortable or you feel unwell, even if the display shows a setting within a common range. Lower the setting or leave the room if you feel dizzy, weak, nauseated, or unusually short of breath.

Don't treat 200°F as a goal. Check the limits in your heater and cabin instructions, and remember that the thermometer may read differently from the control.

Keep sessions at a manageable length, drink water, and avoid using a sauna when alcohol or illness could affect how you feel. If you have a health condition or questions about heat exposure, ask a health professional for advice.

Why can the temperature feel different from the display?

The displayed temperature can differ from the heat you feel because sensors measure heat at a particular location. Heat rises, and the area near the heater may feel different from the bench or lower part of the room.

A thermometer gives you a second reference point. The Red Cedar Sauna Thermometer and Hygrometer has Fahrenheit and Celsius dials, plus a humidity dial, so you can check the room without relying only on the heater control.

Follow the cabin maker's placement instructions and keep the thermometer away from direct contact with the heater. Use a consistent spot so readings are easier to compare between sessions.

Humidity also changes the feel of a traditional sauna. A brief pour over suitable hot stones can make the room feel more intense, so add water only if your heater instructions allow it.

Does a traditional sauna need a different setting from an infrared sauna?

Yes. Traditional saunas generally use higher air temperatures than infrared cabins, because the heaters warm the room and stones while infrared units use a different heating method.

Use the setting range specified for your sauna type. For a broader look at the differences, see infrared vs. regular sauna.

A control sensor can help track conditions over time. Harvia's Smart Sensor works with electric and wood-burning sauna heaters and connects with the MyHarvia app for temperature, humidity, usage, and notifications.

Check compatibility with your heater before choosing a sensor. It can provide information about room conditions, but your sauna's instructions still determine the proper operating range.

How does heater size affect sauna temperature?

A heater needs to suit the room to heat it as intended. Room volume, insulation, and the heater's capacity all matter, so a low or uneven temperature can point to a sizing or setup issue.

The VEVOR 9KW Electric Sauna Heater with External Control is specified for sauna rooms of 317 to 459 cubic feet and uses a separate digital controller. Its instructions call for checking voltage and site conditions before use.

Confirm the room volume and electrical requirements with a qualified installer before selecting a heater. Our guide to what size sauna heater you need explains the sizing factors to check.

How can you find a comfortable sauna temperature?

Find a comfortable setting by starting low, changing one setting at a time, and checking a thermometer. Give the room time to warm, then adjust gradually rather than jumping straight to a high setting.

If the cabin takes longer to reach a steady temperature than expected, check the door, ventilation, heater setup, and room size against the instructions. Our guide to how long a sauna takes to heat up covers the warm-up process.

Keep track of the setting and how it felt, especially if more than one person uses the sauna. A simple routine can help you settle on a comfortable range; see how to sauna properly at home.

What temperature should you choose for your sauna?

Choose a setting within the range approved for your sauna type and equipment, then adjust it to your comfort. For many traditional saunas, start around 150°F; for infrared, start around 120°F and follow the cabin guidance.

Use a thermometer if you want to check room conditions, and consider a connected sensor if you want app-based tracking. If the room won't reach a steady temperature, review heater sizing and setup before raising the control setting.

Frequently asked questions

What temperature should a sauna be set at?

Many traditional saunas are set around 150°F to 195°F, but the right setting depends on the heater, room, and your comfort. Begin at a lower temperature, follow the sauna maker's guidance, and leave if you feel unwell.

Infrared saunas generally use lower settings, often around 120°F to 150°F.

Is 200°F too hot for a sauna?

A 200°F setting is above the common range for many home sauna sessions, so don't assume it's suitable for your room or heater. Check the sauna and heater instructions, use a thermometer, and lower the setting if the heat feels uncomfortable.

Stop the session if you feel dizzy or unwell.

What temperature should an infrared sauna be?

Infrared saunas commonly operate around 120°F to 150°F, below the typical range used for traditional saunas. Use the temperature range in your cabin's instructions and adjust gradually, since room design and personal comfort affect how the heat feels.

Where should a sauna thermometer be placed?

Place a sauna thermometer where the sauna maker recommends, since readings can vary with height and distance from the heater. Keep it away from direct contact with the heater and follow the cabin instructions.

Use the same location when comparing readings from one session to another.