August 21, 2025: The Arctic sea ice has experienced a lesser decrease rate for this week of 6.37% (last week’s decrease rate was 7.25%), from the level on 08/14/2025 of 5.434 M km² to 5.088 M km² for this week.  The sea ice extent for 2025 to date has slipped to 8th place for the lowest sea ice extent for this time of year as noted in the ranking below:

2012    4.275
2020    4.574
2024    4.738
2019    4.744
2007    4.923
2016    4.971
2023    4.996
2025    5.088

The negative sea ice anomaly this week was lower than the anomaly of -1.0879 M km² on 08/14/2025 to a lesser negative anomaly of -1.0411 M km² on 08/21/2025, and so less anomalously negative for this time of year.