Your summer season on the Yucantan's W coast could of course be absent a single
storm, but I don't think your logic is sound. I notice the Yucatan
landmass measures 170NM W-E at the latitude of Campeche while storm systems are much larger than that; the Yucatan landmass may reduce a storm's strength a bit but it would hardly be a source of protection. You might want to spend some time researching storm tracks (and the details of the respective storms) to test your theory. As I recall
, one of the hurricanes that killed the most people in the USA, Allen in 1980, swept right past the N tip of the Yucatan Since such storms are steered by the large continental land masses' pressure gradients and the jet stream, I would think it's unrealistic to expect that local geographic features are going to noticeably influence these storms.
I also remember reading on the NHC site that the Mayans provide the first recorded history
of hurricanes...and they lived predominantly inland.
Good luck with the new boat
, and also your storm planning.