Weather is probably a major factor when you plan your trip to Belterra, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and October, with an average temperature of 29°C, while the coldest months are February and March, with an average of 26°C. The rainiest months in Belterra are March, April, February and January, with each month seeing an average of 607 mm of rainfall.