There's nothing like an all-inclusive vacation in Boca de Aroa to rejuvenate you, especially when you know what kind of weather to expect. Here's some info to help you decide when to book: The hottest months are usually September and August with an average temp of 81°F, while the coldest months are February and January with an average of 78°F. February and January are the driest months while November and October are the rainiest months.