how hot should a sauna be
A suitable sauna temperature is between 60C and 100C. You can choose the sauna temperature you enjoy most. The humidity of the sauna air is regulated by good fresh air and throwing water on the hot stones: the water changes into smooth invisible steam and increases the humidity. This is called the lyly. Note: a sauna is NOT a steam bath. Saunas in North America achieve 194 degrees Farenheit (90 C) with a fairly low humidity. Even adding water onto the sauna rocks will rarely raise the relative humidity (RH) over 20%. Most homes have a normal humidity level of 40-60%, or even higher.