Weather will likely play an important role when you plan your trip to Concordia, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May, with an average temperature of 23°C, while the coldest months are January and February, with an average of 20°C. The rainiest months in Concordia are June, October, September and May, with each month seeing an average of 258 mm of rainfall.