We like to think so, but we cannot guarantee it.  Here are the best conditions: hot weather, right after a rain storm, dark night.  Sometimes the night is dark even when the moon is supposed to be bright.  Sometimes a barely visible moon occurs on such a clear night, that even the slightest shine makes it seem bright.  So, there are many factors that make the bioluminescence more/less visible.  The BEST TIME for glowing algae (dinoflagellates) brightness is usually July to October.  But we see it all year round, and in November, we see amazing flashing comb jellies!  So, don't miss out because your vacation does not fall during the summer months.