November 20-Dec 1 maybe

hi everyone! wanting to go to costa rica at this time or planning to go to aruba. Arbua would only be if its going to be raining in Costa Rice like everyday. Anyone know anything about the weather this time of year?? ALSO any recommendations?? I saw there was a horseback ride to the La Fortuna Falls, lots of bridges, i did want to go snorkeling or boating as well!