2025 Ozone Hole Update

  • Released Monday, November 24, 2025

This year, the ozone hole over Antarctica reached its annual maximum extent on September 9th, 2025, with an area of 8.83 million square miles (22.86 million square kilometers.) The average size of the ozone hole between September 7 and October 13 this year was the 5th-smallest since 1992— when the Montreal Protocol began to take effect.



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NASA's Goddard Space Flight Center


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This page was originally published on Monday, November 24, 2025.
This page was last updated on Tuesday, November 18, 2025 at 11:33 AM EST.