When you travel with your pet, keeping track of the weather can help you make the trip more safe and fun for everyone. 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.