My Dad had a boat with teak decks, spruce spars, mahogany cabin sides. Always kept well with lots of teenage labor. Mahogany cabin sides painted after teenage labor left.
Teak decks are hot if treated, if dry they reamained cooler. The maintenance was a chore. They were laid over plywood and had boatlife caulk the last time. Lasted 10 years.
Then teenage labor became 20s labor and liked “workboat” finish. Did again with boatlife caulk and sold. No, as gorgeous as it was, I would not want that again