While it clearly shows that looking into the sun is an uncomfortable experience, for the purposes of judging colour temperature he is a great success as a model.
In this image it was the middle of a clear day and the light is more or less neutral. Put him in the shade, however, the colour temperature is raised towards being blue-ish.
In Photoshop I had a choice of warming filters, so applied number 81 which did warm his skin tone up effectively.
Later in the day as the sun was going down, I took this shot with the warm sun on his face.
While I like the effect, I can see that sometimes - particularly in shots like this where there is no other indication of the sunset, for example, it might seem a little orange.