If you put water and oil in a container and they separate, the interface between them is not wet.
Humid air can make things wet, but that only happens when the moisture in the air condenses onto a solid surface. Humid air will not make the surface of a lake wet even though water is condensing out of the air onto that surface.
Water (and other liquids) make solid things wet.
If you put water and oil in a container and they separate, the interface between them is not wet.
Humid air can make things wet, but that only happens when the moisture in the air condenses onto a solid surface. Humid air will not make the surface of a lake wet even though water is condensing out of the air onto that surface.