June 19, 2025: The Arctic sea ice has experienced a greater decrease for this week of 5.64% (last week’s decrease rate was 4.75%), from the level on 06/12/2025 of 10.829 M km2 to 10.218 M km2 for this week. The sea ice extent is currently at record low levels for this time of year, beating the previous negative record of 10.301 M km2 on 6/19/2016.

Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).
The negative sea ice anomaly this week was higher than the anomaly of -0.7613 M km2 on 06/12/2025 to a greater negative anomaly of -0.9166 M km2 on 06/19/2025, and so more anomalously negative for this time of year.

Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).