Arctic Sea Ice Extent 2024. Arctic sea ice has likely reached its maximum extent for the year, at 15.01 million square kilometers (5.80 million square miles) on march 14, according to scientists at the. In the arctic, the annual minimum sea ice extent occurs in september and the annual sea ice maximum extent occurs in march.

In the arctic, the annual minimum sea ice extent occurs in september and the annual sea ice maximum extent occurs in march. The image above shows the ice extent—defined as the.