In September 18, 2019, sea ice extent dropped to 4.15 million square kilometers (1.60 million square miles), effectively tied for the second lowest minimum in the satellite record along with 2007 and 2016. This appears to be the lowest extent of the year. In response to the setting sun and falling temperatures, ice extent will begin increasing through autumn and winter. However, a shift in wind patterns or a period of late season melt could still push the ice extent lower.
This year’s minimum extent was effectively tied with 2007 and 2016 for second lowest, only behind 2012, which is the record minimum. The 13 lowest extents in the satellite era have all occurred in the last 13 years.