If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Saint-Maurice: The hottest months are usually August and July, with an average temperature of 19°C, while the coldest months are January and February, with an average of 6°C. The snowiest months in Saint-Maurice are February, March, January and May, with each month seeing an average of 13 cm of snowfall.