Taking into account the local weather in San Juan de Arama is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually February and January with an average temp of 76°F, while the coldest months are July and June with an average of 72°F. The rainiest months in San Juan de Arama are May, April, July, and June, with each month seeing an average of 13 inches of rainfall.