Highest-ever ocean temperature measured as powerful El Niño forms
Points and comments are a snapshot, not live.
Ocean hit record 70°F average surface temperature on Aug. 22, supercharged by El Niño.
Copernicus recorded the highest global average sea-surface temperature, 70°F, on Aug. 22, 2026, breaking the previous daily record from March 2024. The combination of decades of human-driven warming and a powerful El Niño drove the record. Scientists warn of increased risks to marine ecosystems, sea level rise, and extreme weather due to warmer oceans transferring more heat and moisture to the atmosphere. Ocean temperatures typically peak in March or April, making an August record particularly concerning.
What commenters are saying
Commenters debated the significance of the surface measurement versus deeper ocean temperatures, with some noting nuance in warming patterns by depth and latitude. Others emphasized real-world impacts: more cyclones, coral bleaching, droughts, and bushfires (especially from an Australian perspective).
A strong thread argued that individual action is futile; only national government policy matters. Several commenters countered that local politics, voting, and promoting public transit and better zoning can drive meaningful change. One commenter noted El Niño events are now 36% stronger than 40 years ago due to climate change.