Weather is probably a major factor when you plan your trip to Llano Bonito, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April, with an average temperature of 26°C, while the coldest months are January and December, with an average of 26°C. The rainiest months in Llano Bonito are October, November, September and August, with each month seeing an average of 340 mm of rainfall.