More an astronomy question, but Physics is the closest stack exchange category I could find and Google doesn't have the answer.
Granted, the sun's elevation changes for a given time of day throughout the year, easily explained by the earth's axial tilt.
Does it's bearing vary, by how much, and by what mechanism(s)?
Unless my admittedly crude observations are flawed, I believe that the sun's bearing for a given time of day has increased since earlier in the year (my crude observations being its angle to my street at the consistent times that I leave to and return from work).
Have raised the question with my cousin who is a navigator in the Royal Navy, after a couple of pints and a pitcher of Pimms, and we're now very much eager to hear an intelligent answer!