The majority of infrared saunas can reach temperatures of up to 150 degrees Fahrenheit, but you do not have to raise the heat to that level. The ideal temperature range tends to be from 110 to 130 degrees. However, what really determines the best temperature is your purpose in using the infrared sauna. If you are looking to sweat, then you will need to raise the temperature higher for optimal results. Whereas, if detoxification is your main goal, then enjoying sessions at lower temperatures is more advisable.