Weather is probably a major factor when you plan your trip to São Pedro do Ivaí, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually December and November, with an average temperature of 24°C, while the coldest months are July and June, with an average of 19°C. The rainiest months in São Pedro do Ivaí are January, February, December and October, with each month seeing an average of 229 mm of rainfall.