Report Available
2023 September Sea Ice Outlook

To read the full report, go to:

The 2023 September Sea Ice Outlook (SIO) Report is now available online. This report, developed by Sea Ice Prediction Network (SIPN) team members, provides an open process for those interested in Arctic sea ice to share predictions and ideas.

For the pan-Arctic, the median September Outlook value for September 2023 sea-ice extent is 4.50 million square kilometers, with lower and upper quartile values 4.2 and 4.61 million square kilometers, respectively. The median Alaska sea-ice extent forecast for the Alaska region is 0.29 million square kilometers. As of mid-September, ice extent was lower than the 1980–2010 average in nearly all sectors of the Arctic Ocean and particularly in the Amerasian basin (Beaufort, Chukchi, and E. Siberian Seas).

For the Antarctic, an anomaly persistence forecast predicts a record-low sea-ice extent in September.

The 2023 SIO effort is supported with funds from NSF award #1331083.

To read the full report, go to:

For questions, contact
Betsy Turner-Bogren
Email: betsy [at]