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World's oceans hit highest temperature on record as El Niño grows

Sea-surface temperatures hit record highs in August 2026, driven by a strengthening El Niño and warm Atlantic waters. Dramatic warming across the equatorial Pacific signals the onset of an event that could be historic in scale. University of Michigan research using fossilized Galápagos corals confirms that human-caused climate change has increased the strength of El Niño events by nearly 40% over the last 40 years. This trend makes current patterns more extreme than any seen in the previous 1,000 years, raising alarms about more destructive global weather impacts.

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What changed

Recent data confirms dramatic warming across the equatorial Pacific, indicating the current El Niño may be historic.

Live updates

  1. Equatorial Pacific Warming Signals Potentially Historic El Niño

    Sea-surface temperatures hit record highs in August 2026, driven by a strengthening El Niño and warm Atlantic waters. Dramatic warming across the equatorial Pacific signals the onset of an event that could be historic in scale. University of Michigan research using fossilized Galápagos corals confirms that human-caused climate change has increased the strength of El Niño events by nearly 40% over the last 40 years. This trend makes current patterns more extreme than any seen in the previous 1,000 years, raising alarms about more destructive global weather impacts.

    Why it matters

    El Niño events disrupt global weather patterns and can cause severe environmental damage. The current peak is unusual because sea temperatures typically drop during August. These findings link long-term industrial emissions to the increasing intensity of natural climate cycles.

    What is confirmed

    • Global average sea-surface temperatures reached a new record high in August 2026.
    • El Niño events have become nearly 40% stronger over the last 40 years compared to the preindustrial era.
    • Current El Niño patterns are more extreme than those observed in the previous 1,000 years.
    • Warming in the equatorial Pacific in 2026 signals the start of a strong El Niño.

    What to watch next

    • Reports on specific global weather disruptions linked to the 2026 El Niño
    • Updated sea-surface temperature readings for September 2026
    Sources used for this update (7)
    1. jen.jiji.com — Kazakhstani canoeist finishes seventh at World Cup in Poland
    2. Phys.org — Galápagos corals show El Niño events are more extreme now than in past 1,000 years
    3. www.bbc.com — Stunning photos capture August's Sturgeon Moon
    4. jen.jiji.com — Main venues revealed for 6th World Nomad Games in Kyrgyzstan
    5. jen.jiji.com — ADB approves $5 million emergency grant for Nepal flood relief
    6. www.wlwt.com — Plan to cut Colorado River water use amid drought brings uncertainty for cities, farmers
    7. jen.jiji.com — Dimash headlines Miners’ Day celebration concert in Karaganda
    confidence 100%

  2. Ocean Temperatures Reach Record High as El Niño Intensifies

    Global average sea-surface temperatures hit a new record high in August 2026. A strengthening El Niño and unusually warm Atlantic waters drove this peak during a month when temperatures usually drop. A University of Michigan study using fossilized Galápagos corals indicates that human-caused climate change is supercharging these events. The research shows El Niño events have become nearly 40% stronger over the last 40 years compared to the preindustrial era, making current patterns more extreme than those seen in the previous 1,000 years.

    Why it matters

    El Niño events typically peak in spring, but current warming patterns are defying seasonal norms. These temperature surges stress marine ecosystems and impact human interests. Scientists are using coral records to determine if current warming is a cyclical anomaly or a permanent shift driven by global warming.

    What is confirmed

    • Global average sea-surface temperatures reached a new record high in August.
    • A strengthening El Niño and warm Atlantic waters contributed to the August temperature peak.
    • Fossilized Galápagos corals provide evidence that current El Niño events are stronger than those in the past.
    • El Niño events have intensified over the last 40 years due to human-caused climate change.
    • University of Michigan research found El Niño events are nearly 40% stronger in the last 40 years than in the preindustrial era.

    What to watch next

    • Data on whether ocean temperatures continue to rise into September
    • Further peer review of the University of Michigan coral study
    • Reports on specific fish population declines linked to the August peak
    Sources used for this update (6)
    1. www.newsweek.com — El Niño Is Still Strengthening. The Ocean Is Already Breaking Records
    2. www.yahoo.com — Global ocean heat breaks record months after its usual peak
    3. apnews.com — As super El Nino strengthens, study suggests that climate change is intensifying El Ninos
    4. www.scientificamerican.com — Climate change is supercharging El Niños, coral records show
    5. Phys.org — El Niños have been more intense over the last 40 years than in the previous 1,000 years, coral records reveal
    6. malaysia.news.yahoo.com — Galápagos corals show El Niño events are more extreme now than in past 1,000 years – here’s how my team made the discovery
    confidence 95%

  3. Global Oceans Reach Highest Recorded Temperature on August 22

    The world's oceans hit their hottest temperature ever recorded on August 22, 2026, according to the European climate service Copernicus. This peak occurred during a month when ocean temperatures typically cool. The surge is linked to the growth of an El Niño event and broader climate change. Experts indicate these extreme temperatures negatively impact fish populations and human interests. The record surpasses previous peaks typically seen during the spring.

    Why it matters

    Ocean temperatures influence global weather patterns and marine biodiversity. A Super El Niño is currently forming, which typically accelerates warming. This event breaks a temperature record that may have stood for millennia.

    What is confirmed

    • The world's oceans reached their hottest temperature on record in August.
    • The European climate service Copernicus reported that oceans have reached their hottest temperature on record.
    • The record temperature was reached on August 22, 2026.
    • The temperature increase is associated with the growth of El Niño.

    Still unconfirmed

    • The current temperature record may have stood for millennia.
    • A Super El Niño is forming.

    What to watch next

    • Data on the impact of these temperatures on fish populations
    • Further temperature readings as the El Niño event progresses
    Sources used for this update (10)
    1. The Washington Post — The ocean just broke a temperature record that may have stood for millennia
    2. The Guardian — World’s oceans hit hottest temperature on record in August
    3. BBC — World's oceans hit highest temperature on record as El Niño grows
    4. Scientific American — Earth’s oceans just hit their hottest temperature ever recorded
    5. AP News — Earth is simmering in its hottest water temps on record, and that’s bad for fish and us
    6. www.earth.com — The ocean normally cools off in August, but it just hit the highest temperature seen in thousands of years
    7. www.detroitnews.com — Highest-ever ocean temperature measured as Super El Niño forms
    8. apnews.com — Oceans hit record temperatures amid climate change and El Nino
    9. www.yahoo.com — Truck rolls over on I-95 South in Warwick, backing up traffic
    10. www.aa.com.tr — Warning comes days after Australia confirmed its 1st case of bird flu in a mammal.
    confidence 90%