We are going on the same cruise except at the end of November. It is true that the ocean might be rough, but then again, you never know about the weather, its often unpredicable. Just take some sea-sick pills with you. No cruise is guaranteed smooth sailing, no matter what time of year you cruise. We have cruised in April and May and have experienced rough seas that time of year as well. Yes, the closer you get to Florida and the Carribean Islands, the warmer it will become. You might even wish for the cooler temperatures!