First: Know What Your Climate Really Does to a Fountain
Most people think of a fountain as a decoration that happens to have water in it. In reality, the water is the part that causes almost every long-term issue.
A fountain is always wet somewhere — inside the basin, along the pump tubing, or in the channels where the water flows. Once you place it outdoors, the weather starts interacting with that water every single day.
In hotter areas the water level drops faster than expected.
In colder areas the water freezes inside small openings.
In dry or windy yards the splash slowly pushes water out of the basin.
In humid climates you simply clean it more often.
So the question isn’t really whether a fountain can go outside. Most are designed for that. The real question is whether the material and placement match the conditions around your home.