There seem to have been a lot of posts about whether it's good to dive in this month or that. I don't want to shout but THERE AREN'T REALLY ANY BAD MONTHS! You will hit a few Nortes in December/January/February. Hurricanes are an Act of God and can happen at any time....but seems to be summer/fall. Low seasons are great if the dive op will go out without a half-full boat. In short, I would take my chances any day in Coz when you consider all things (cost, ease of arrival, risk of getting blown out, fabulous people). Just my two cents.