If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Iporanga: The hottest months are usually December and February, with an average temperature of 22°C, while the coldest months are July and June, with an average of 16°C. The rainiest months in Iporanga are January, February, December and November, with each month seeing an average of 207 mm of rainfall.