Sonja, maybe you should just go with the flow and make Palmetto bug soap. You know, when fate hands you lemons, make lemonade.
I'm sorry you are having climate problems. Are your molds curing indoors and do you have your air conditioning or dehumidifier going? I think that soap is probably happiest in environments where humans are comfortable, in moderate temperature and humidity.
Here in Los Angeles our humidity ranges from middle range or slightly dry to very dry, and temperature from mild to hot. I think curing soap is probably happier here with the drier and warmer climate than it is with colder or more humid climates.
I have to admit that Florida and the Caribbean are certainly a different world and you realize it when that wall of humidity hits you. Outdoors and wearing light clothing or a swim suit, and in the breeze, actually I just love the climate, but it must be the pits when you have to dress up or when you are caught in stagnant air. Or make soap...
It would be nice to be swinging in a hammock next to a swimming pool and sipping a piña colada.