I'm definitely not the expert navigator, but have figured out the sun is to the south, and travels between the Tropics of Cancer and Capricorn during June 21 and December 21, and ought to be due south at local noon for those north of it, I believe. Still, all input is welcome, since my piloting skills, while I like to think I understand them, are fairly rudimentary by many people's standards.
Yes, to confirm... at Local Apparent Noon the sun is due South (true south, of course). It's used mainly to find Latitude.