Taking into account the local weather in Bastimentos is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually September and June with an average temp of 80°F, while the coldest months are January and February with an average of 77°F. The rainiest months in Bastimentos are November, July, December, and October, with each month seeing an average of 16 inches of rainfall.