Planning for the weather is a good way to make your trip to Port Elgin relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 64°F, while the coldest months are February and January with an average of 26°F. The snowiest months in Port Elgin are January, February, December, and November, with each month seeing an average of 23 inches of snowfall.