A rain shower head should ideally be a foot or more away from the top of your head. The height of the tallest member of your household should determine the placement of the showerhead. Some showerheads have longer necks than others. If your bathroom has a low ceiling, avoid opting for such showerheads. It is okay for the showerhead to be higher up rather than closer to your head. The distance from your body will help mimic rainfall more accurately.