In my home country we get about 6 months of torrential monsoon rains, typhoons and flash floods. Our humidity there is almost always 90 to 100%
Now, Cali, where we both live, is the flipside of it...6 months or more of no rain..humidity low to very low, and currently in this on going drought.
But that is a really cute banana plant..maybe that cultivar will fare better who knows..no harm in experimenting..as long as it is not too expensive for you. But do think about the humidity and moisture aspect. I have seen some areas here that try to grow Bananas..but it is so sad looking..the leaves are lackluster, but they grow maybe on drip timer, and they are outdoors.
If your location in SoCal is coastal, maybe you may have a chance to grow it..but if you are way too inland..might be too dry for it during the warm months and too cold during winter.
