Weather will likely play an important role when you plan your trip to Antigonish, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 17°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Antigonish are February, January, December and October, with each month seeing an average of 86 cm of snowfall.