Weather is probably a major factor when you plan your trip to Ponta Grossa, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually December and January, with an average temperature of 21°C, while the coldest months are July and June, with an average of 15°C. The rainiest months in Ponta Grossa are January, December, October and February, with each month seeing an average of 206 mm of rainfall.