If you're hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Iporanga: The hottest months are usually December and February with an average temp of 71°F, while the coldest months are July and June with an average of 61°F. The rainiest months in Iporanga are January, February, December, and November, with each month seeing an average of 8 inches of rainfall.