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.
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.