Yep, but you won't be doing that with a cheap houseboat.
Not my choice of craft, but I have seen them moving up and down the ICW
. Most of the stretch between Norfolk and Miami
is pretty sheltered, and with a modicum of commonsense choosing your weather, there is no reason a houseboat can't move safely. Personally, I would go for a regular power boat
or sailboat in order to have more boating destination
options, but it is doable on a houseboat.
As to that perfect climate, about as close as you could get in the USA is San Diego
I think, but even there aren't the summer temperatures higher than 70s? Here on the East Coast you can easily live year 'round almost anywhere from the Carolinas to Florida, but you will need AC in the summer and some heat in the winter, except for southern Florida.