Weather is probably a major factor when you plan your trip to Zumba, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and August, with an average temperature of 16°C, while the coldest months are July and August, with an average of 15°C. The rainiest months in Zumba are March, February, January and December, with each month seeing an average of 390 mm of rainfall.