I made a passage from Guanaja to
Key West last April. Probably close enough to Roatan for your purposes. My mate/wife and I did the trip in 5 nights in my 37 ft.
sloop. Under similar conditions you should be able to make the trip in no more than 4 nights in your 47 ft.
catamaran. The
winter easterly
trade winds and the north setting
current should rocket you north. The problem you may face is getting a good
weather window that will allow you to go all the way without getting slammed by a norther with the accompanying rough seas from the notherly winds and again from the northeast and east as you round
Cuba and
head east. During January there are frequent cold fronts that get as far south as
Honduras and while the
weather is not cold it is frequently with strong winds, rough seas and rain. In south
Florida the same front can bring very cool weather. If you have the luxury of time and enough patience you can find a weather window which should
work. And I would do that rather than go north with more frequent stops in
Belize and
Mexico. It can take you weeks to get to Florida if you do that and the expense and hastle of dealing with all the officials is an aggravation if you really do not have to do it. We keep 3 hour watches and had no problems realtive to standing watch once we got used to getting our rest as catnaps. Look for a window which will allow you to leave after the passage of a front and after the
wind has clocked to the northeast or east and then go for it. Also, try to arrive at western Cuba after the easterly winds are starting to clock southeast. If the trades are not too strong then the time spent in the
Gulf Stream should not be too uncomfortable. Just keep a good watch--the
shipping traffic is very heavy.