Weather will likely play an important role when you plan your trip to Ivry-sur-Seine, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July with an average temp of 66°F, while the coldest months are January and February with an average of 42°F. The snowiest months in Ivry-sur-Seine are February, March, January, and April, with each month seeing an average of 6 inches of snowfall.