Global ocean temperatures hit record high for third consecutive year

Earth's oceans reached unprecedented warmth in 2025 while northern forests shifted from carbon sinks to emitters and the Greenland Ice Sheet shed 129 gigatons of ice, underscoring accelerating climate system changes.

First covered Aug 10, 2026 · 6:00 AM PT · 1 article

Global ocean temperatures hit record high for third consecutive year — Image via insideclimatenews.org

Coverage

5h Inside Climate News State of the Climate: A Dimming, Overheated Planet, With Degraded Oceans — As global warming continued to reshape Earth’s climate, the planet’s oceans reached record high temperatures for the third year in a row in 2025.

More coverage from around the web

globalseafood.org Ocean temperatures hit record highs in 2025, underscoring need for climate action - Responsible Seafood Advocate

eurekalert.org Ocean temperatures reached another record high in 2025 | EurekAlert!

link.springer.com Ocean Heat Content Sets Another Record in 2025 | Advances in Atmospheric Sciences | Springer Nature Link

english.iap.cas.cn Ocean Temperatures Reached Another Record High in 2025----Institute of Atmospheric Physics

news.mongabay.com Ocean set ‘alarming’ new temperature record in 2025

Appeared in: 2026-08-10 (#10)

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