Planning for the weather is a good way to make your trip to Grise Fiord relaxing and enjoyable, especially when you're splurging. The hottest months are usually July and August, with an average temperature of 2°C, while the coldest months are February and January, with an average of -27°C. The snowiest months in Grise Fiord are April, May, October and March, with each month seeing an average of 22 cm of snowfall.