It would depend on what paint and how often/where you sail. Here on the Chesapeake Bay, I use Micron Extra and have gone 2 years between haulouts, and the paint still looks good, though some slime. I could probably go another 6-12 months if I really had to. You might have a diver clean off the slime and check the paint (and the zinc while he's down there), and he could advise you if you need painting. If hauled out now, maybe go ahead and paint. If not hauled out, wait until fall to see how the paint is, then you could base your future scehdule on what you find.`