Taking the local weather in Les Îles-de-la-Madeleine into account can help you maximise your time at the pool during your trip. The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Les Îles-de-la-Madeleine are February, March, January and April, with each month seeing an average of 32 cm of snowfall.