Tom this morning my forecast showed winds from the East however my actual winds are W → WNW and that is this mornings forecast from the UKMO. I tried a run with the same data but with Sea Breeze turned off and I got winds from the North, so it looks like the Sea Breeze routine is moving the wind direction by some 90
Thanks for that information. It does sound like the sea breeze is doing the sort of thing it should (bring winds in off colder water), except that in this case it’s wrong! 
Please let me know if this continues.
Tom