Taking into account the local weather in Belterra is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually September and October with an average temp of 84°F, while the coldest months are February and March with an average of 79°F. The rainiest months in Belterra are March, April, February, and January, with each month seeing an average of 24 inches of rainfall.