NASA reports third-lowest Antarctic sea-ice maximum in satellite record
The October 12 analysis estimates the annual maximum occurred September 14, covering 17.59 million square kilometres.
What the record says
NASA Earth Observatory’s October 12 report, citing NASA and NSIDC observations, says Antarctic sea ice likely reached its 2026 annual maximum onSeptember 14. Estimated extent was 17.59 million square kilometres, the third-lowest maximum in the satellite record. The article explains the distinction between seasonal maximum extent and sea-ice concentration.
Source details and supporting locations.
Practical next step
Consult the source’s maps and NSIDC data for measurement methods and historical comparisons.
Limits and what is not established
This concerns sea ice, not land-ice mass or the Antarctic ice sheet. The maximum date is described as likely, and one year’s result alone does not establish the cause or full long-term trend.
Sources checked October 12, 2026. Later notices may change instructions or arrangements.
Original sources
NASA Earth Observatory: original information