Taking into account the local weather in Boca de Aroa is an important factor for planning your visit, especially if you plan to spend your trip poolside. 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. The rainiest months in Boca de Aroa are November, October, July, and June, with each month seeing an average of 7 inches of rainfall.