Yes, the steam is very hot. It has to be hot or else it wouldn’t be able to kill germs and bacteria without the aid of a cleaning solution. To be able to kill germs, the temperature of the water needs to reach at least 175 degrees. In some brands, the water reaches temperatures of upwards of 212 degrees. This means that it is going to get the floor pretty hot, and you certainly want to ensure that you keep little ones as well as bare feet away from the water while it is in use.