Planning for the weather is a good way to make your trip to Sante Marie relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July with an average temp of 68°F, while the coldest months are January and February with an average of 39°F. The snowiest months in Sante Marie are March, December, April, and February, with each month seeing an average of 13 inches of snowfall.