Baffin Bay July, the average temperature is . The annual precipitation is on the Greenland side and about twice as much near Baffin Island. The water temperature at the surface is below in winter. In summer, it varies from in the south-east to and below at north-west. The salinity exceeds 34‰ (parts per thousand) in winter. In summer, it is 32‰ on the east and 30–31‰ on the west. Deep waters are formed as a result of mixing of Arctic and Atlantic waters; their temperature is about and salinity is 34.5 ‰. In winter, 80% of the bay is covered with continuous
Hudson Strait expedition led by Robert Bylot and William Baffin in 1616. Hudson Strait links the northern seaports of Manitoba and Ontario with the Atlantic Ocean. The Strait could serve as an eastern entrance to the Northwest Passage if it were not for ice in the Fury and Hecla Strait south of western Baffin Island. The International Hydrographic Organization defines the limits of the Hudson Strait as follows: Hudson Strait Hudson Strait links the Atlantic Ocean and Labrador Sea to Hudson Bay in Canada. This strait lies between Baffin Island and Nunavik, with its eastern entrance marked by Cape Chidley in Quebec