Weather is probably a major factor when you plan your trip to Santo Amaro da Imperatriz, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually January and February, with an average temperature of 24°C, while the coldest months are July and June, with an average of 17°C. The rainiest months in Santo Amaro da Imperatriz are January, February, December and March, with each month seeing an average of 221 mm of rainfall.