I have been camping for two months in the Keys in February and March for the last few years. I can't think of any issues that have come up over the times I have been doing this*. I think the humidity issues occur while winter camping when you get below freezing temperatures.
*We don't always get FHUs so water, gray water, black tank and power management is the challenge when dry camping.
*We don't always get FHUs so water, gray water, black tank and power management is the challenge when dry camping.