Climate and extreme weather

Low precipitation levels, low temperatures and high winds characterize the park’s marine arctic climate. Combined with the low temperatures, the wind produces some of the highest wind chill factors in North America and the most blowing snow. Hudson Bay influences the area’s climate by creating a heat sink in the summer. On shore winds create fog in the summer and snowstorms in the fall. The ice remains on the bay until mid July. Be prepared for snow anytime, anywhere in Ukkusiksalik!


Monthly climate summaries
Month Average high Average low Percipitation in mm (rain/snow)
January -28.7℃ -35.8℃ 0 / 84
February -27.9℃ -35.1℃ 0 / 84
March -22.9℃ -31.5℃ 0 / 128
April -12.6℃ -22.1℃ 0.5 / 153
May -2.2℃ -9.4℃ 6.7 / 102
June +9.2℃ +0.5℃ 20.8 / 33
July +16.7℃ +6.0℃ 41.8 / 0
August +14.0℃ +5.0℃ 45.7 / 13
September +5.9℃ -0.6℃ 35.8 / 81
October -4.2℃ -10.7℃ 5.3 / 294
November -16.3℃ -23.9℃ 0.1 / 213
December -24.8℃ -31.9℃ 0 / 122

Hypothermia and frostbite

Hypothermia is a life-threatening condition. People with hypothermia can no longer keep themselves warm and cannot re-warm themselves without assistance. Know the signs and symptoms of hypothermia and how to treat it and take precautions to prevent its onset. Remember to take the windchill factor into account when evaluating temperatures.


Wind and rough water>

Before heading into the park you can obtain weather forecasts. Remember that areas of calm seas and areas of wind and rough waters may be relatively close together. Local outfitters know the conditions and weather trends for the area. Please listen to local outfitter advice regarding winds, rough water and points of land that are dangerous during challenging weather conditions.