Planning for the weather is a good way to make your trip to Tobermory relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 18°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Tobermory are January, February, December and November, with each month seeing an average of 58 cm of snowfall.