Q:

Does Mercury have a balmy spot?

From Wikipedia:

Although the daylight temperature at the surface of Mercury is generally extremely high, observations strongly suggest that ice exists on Mercury.

Does that mean there could be a spot on Mercury where a person could stand and it would be a balmy 80° F (27° C)?
Obviously, let's ignore any radiation issues, etc.

A:

The observations of ice are at the poles, in permanently shadowed craters, much as people think there may be stable, solid ice in permanently shadowed regions of the lunar south pole.  While one atom that's -50°C right next to another that's +200°C would equilibrate almost immediately, there will be a very tiny transition zone of temperature between the permanently shadowed crater with ice (if it exists) and the much hotter surface that's in the sun.
However, this would be the temperature of the surface.  When I think of "balmy" I think of palm trees, a warm sun, and a gentle breeze.  There is no atmosphere to speak of on Mercury, so there would be no air in which you would experience this "balmy" surface temperature in the very very narrow transition region.

