Antarctic Ice Melt 2025 Dates. On september 19, 2025, antarctic sea ice stalled out at an annual maximum extent of 17.16 million square kilometers (6.63 million square miles), the second lowest maximum in. After growing through the southern hemisphere fall and winter, sea ice in.
An international research team deployed an. This cycle of growth and melting occurs every year, with the ice reaching its smallest size during.