Weather will likely play an important role when you plan your trip to Kuujjuaq, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 10°C, while the coldest months are February and January, with an average of -19°C. The snowiest months in Kuujjuaq are March, January, December and February, with each month seeing an average of 35 cm of snowfall.