Planning for the weather is a good way to make your trip to South Bruce Peninsula relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July with an average temp of 64°F, while the coldest months are February and January with an average of 27°F. The snowiest months in South Bruce Peninsula are January, February, December, and November, with each month seeing an average of 23 inches of snowfall.