Comment by jfengel

We can only talk about the surface. The surface emits basically no radiation at all. The amount of Hawking radiation it emits is practically non-existent. It's truly black.

The temperature inside could be anything. You could well be inside a black hole right now.

Even if we were inside one we couldn't really talk about the temperature of the singularity. The singularity is a divide-by-zero error. It probably doesn't physically exist at all, and whatever does exist is beyond our ability to model.