Ikersuaq (old spelling Ikerssuak), meaning "the great sound" in the Greenlandic language, —also known as Ikertivaq— is a fjord in Sermersooq municipality, southeastern Greenland. This fjord is mostly encumbered by ice. Tundra climate prevails in the region of the fjord, the average annual temperature in the area being -10° C. The warmest month is July when the average temperature rises to 0° C and the coldest is January with -18° C.