Weather is probably a major factor when you plan your trip to Bonito, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and September, with an average temperature of 26°C, while the coldest months are July and June, with an average of 21°C. The rainiest months in Bonito are February, January, December and March, with each month seeing an average of 241 mm of rainfall.