A nice time of the year to go through. It should be in the 80's and can be quite humid. There's always the chance of a heavy downpour of rain for 30 minutes or so, but that's where all the water comes from the run the canal system. It will still be hot when it rains, it's just that everything will be steaming afterwards! Have a nice trip.
What will the weather be like on transatlantic from Genoa to Brazil in November.