You are definitely more likely to get significant rain in Dec-Feb, than you are in Jun/Jul. November can be a good month to go - slightly cooler weather than in summer time, but still usually warm enough for beach activities. In October, the number of rainy days starts to increase, and towards the end of Nov, you’re more likely to encounter some of the multi-day storms that pass through, but I wouldn’t worry too much, unless you’re planning on late Nov.
It’s usually luck of the draw. The hurricane season is actually early fall, but most of the time, nothing actually rolls through. 85% of the time when it does rain, you’ll get a few minutes of heavy rain, followed soon by sunshine. But every now and then, you can get a storm that hangs around for a few days.