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zacklabe.com Zack Labe @zacklabe.com · 4d
Check out the total extent of the ocean warmth from last month...

Data from NOAA OISSTv2.1 🌊
Global map showing sea surface temperature anomalies in August 2026 relative to 1982 to 2010. Most areas are warmer than average. Red is shown for warmer sea surface temperatures, and blue is shown for colder sea surface temperatures. Data is from NOAA OISSTv2.1.
September 29, 2026 at 12:23 PM
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zacklabe.com Zack Labe @zacklabe.com · 1d
This is pretty wild... the average global sea surface temperature (outside of the polar regions) is still above 70°F (21.1°C) through the end of September. This is significantly above the prior record.

We'll cover this in our October climate briefing: climatecentral-org.zoom.us/webinar/regi... 🌊
Line graph time series of daily global mean sea surface temperatures from 1982 to 2026. This year is currently at record high for this time of year. Data is from NOAA OISSTv2.1, and the graphic is created by Climate Central at https://www.climatecentral.org/climate-briefings.
October 3, 2026 at 2:01 AM
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September 27, 2026 at 2:31 AM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · Dec 30
Clusterf&%k alert!

The 3-year running average for the global surface temperature anomaly is now 1.52°C above the 1850-1900 pre-industrial baseline. This is likely the hottest 3-year running mean in over 120,000 years.
December 31, 2025 at 1:21 AM
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zacklabe.com Zack Labe @zacklabe.com · 7d
Quick oceans update: yah, sea surface temperatures remain in new territory this year.

See more at zacklabe.com/climate-chan.... This data (extrapolar ocean) is provided by @copernicusecmwf.bsky.social ERA5. 🌊
Graph showing daily global mean sea surface temperatures for 2026. This is also compared to the daily data from the 1981-2010 average and 1991-2020 average. Annotations are also shown to the current year with the other years from 1940 to 2026. There is a seasonal cycle. There is a long-term warming trend. 2023 and 2024 are also indicated, which were the warmest years on record. Data is from ECMWF ERA5 reanalysis and updated through 23 September 2026.
September 26, 2026 at 1:25 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · 1d
Records come and records go. But this is one for the ages.

The preliminary Nino 3.4 sea-surface temperature anomaly is now at a record 3.23°C above the 1991-2020 baseline. This crushes the previous daily record set in 1982 by over 1.14°C.

The Climate 8-ball is looking up.
October 1, 2026 at 3:30 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · Mar 28
Global sea-surface temperatures set yet another new daily record, with the preliminary temperature coming in at 21.149°C yesterday.

The hottest SST on record is 21.173°C, set on Apr. 24, 2024.

Will a new record high SST be set this year? The Climate 8-Ball is protesting.
March 28, 2026 at 5:25 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · 5d
Breaking News!
Code: FUBAR!!!

The preliminary Nino 3.4 sea-surface temperature for September 25th was 29.822°C. This breaks the previous highest temperature ever recorded in the region of 29.815°C, set on November 17th, 2015.

The Climate 8-ball is exiting, stage right.
September 27, 2026 at 3:40 PM
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September 26, 2026 at 2:35 PM
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samcarana.bsky.social Sam Carana @samcarana.bsky.social · May 21
High sea surface temperatures were recorded in the Pacific Ocean on May 22, 2026, with high anomalies from 1981–2011 in three areas: 5.3°C off the coast of South America, 4.6°C off the coast of California and 5.4°C off the coast of Asia. arctic-news.blogspot.com/2026/05/ocea...
May 21, 2026 at 12:09 PM
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September 26, 2026 at 6:28 AM
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zacklabe.com Zack Labe @zacklabe.com · Dec 16
Last month was the 4th warmest November on record for the average global sea surface temperature... 🌊

Graphic using NOAA ERSSTv5 data. Methods described in doi.org/10.1175/JCLI...
Green line graph time series of average sea surface temperature anomalies for each November from 1900 through 2025. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline.
December 20, 2025 at 11:48 AM
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zacklabe.com Zack Labe @zacklabe.com · 28d
🚨 Ocean temperatures continue to rise. Last month saw the hottest average global sea surface temperature on record for the month of August. Remember, human-caused climate change is the key reason for these new records.

Data from NOAA ERSSTv6. I guess next month I will adjust that upper y-axis limit
Green line graph time series of average sea surface temperature anomalies for each August from 1900 through 2026. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline.
September 5, 2026 at 2:04 PM
themrneutron.bsky.social
Of course like everything else it's "faster than we thought"

The acceleration is real
climatesignal.net#sea-level

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#GlacierMelt
August 12, 2026 at 11:56 AM
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zacklabe.com Zack Labe @zacklabe.com · Jun 4
The equatorial Pacific continued to warm in May 2026 as El Niño takes hold. Elsewhere, several notable bands of anomalously warm sea surface temperatures persisted across the extratropical Pacific and Atlantic, including a long-lived marine heatwave off Mexico.

Data: NOAA OISSTv2.1 (monthly mean) 🌊
Global map showing sea surface temperature anomalies in May 2026 relative to 1982 to 2010. Most areas are warmer than average. Red is shown for warmer sea surface temperatures, and blue is shown for colder sea surface temperatures. Data is from NOAA OISSTv2.1.
June 5, 2026 at 4:41 AM
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zacklabe.com Zack Labe @zacklabe.com · Jul 25
The average sea surface temperature globally is surging to new record highs for this time of year, well above the historic warmth in 2023 and 2024. How anomalous will it get over the next year as El Niño tightens its grip?

Track the data at zacklabe.com/climate-chan... 🌊
Graph showing daily global mean sea surface temperatures for 2026. This is also compared to the daily data from the 1981-2010 average and 1991-2020 average. Annotations are also shown to the current year with the other years from 1940 to 2026. There is a seasonal cycle. There is a long-term warming trend. 2023 and 2024 are also indicated, which were the warmest years on record. Data is from ECMWF ERA5 reanalysis and updated through 23 June 2026.
July 26, 2026 at 1:36 AM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · May 22
Breaking News!
Code Yikes!

May 21st saw yet another daily record for the global sea surface temperature, with El Nino just getting started.

And the other 3 lines in that snapshot? 2023, 2024 and 2025.
May 22, 2026 at 3:50 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · Feb 20
Only three years on record have seen global sea-surface temperatures above 21.0°C (69.8°F). You guessed it, 2023, 2024 and 2025. The graphic below plots sea-surface temperatures since 1982, omitting the last three years.

Hot times ahead! Stay tuned!
February 21, 2026 at 3:13 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · Apr 13
Here's the latest global surface temperature update, with data through April 11, 2026.

So far, 2026 is averaging 1.49°C over pre-industrial, with a looming El Nino later this year. The Climate Casino previously set the Over/Under for all of 2026 at 1.58°C.

Stay tuned!
April 13, 2026 at 2:21 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · 20h
Breaking News!
y-Axis Alert!

With yesterday's preliminary Niño 3.4 sea-surface temperature spiking to a new record at 29.975°C, the y-axis was raised to 30.5°C.

Meanwhile, the Niño 3.4 anomaly now sits at 3.33°C above the 1991-2020 baseline.

Until tomorrow ...
October 2, 2026 at 3:41 PM
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September 4, 2026 at 2:03 PM
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climatecasino.net Prof. Eliot Jacobson @climatecasino.net · Jul 16
Here's the latest Nino 3.4 sea-surface temperature anomaly forecast, along with 90% confidence interval, with data from CFSv2.

The forecast shows a maximum anomaly of 4.23°C over the 1991-2020 baseline in November.

We're now returning you to your regularly scheduled doom.
July 16, 2026 at 12:22 PM
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weatherprof.bsky.social Jeff Berardelli @weatherprof.bsky.social · 2d
Another day, another record. The globe just broke the record for the warmest Sea Surface Temperature anomaly.
Thanks, #ElNino and Carbon pollution
(Copernicus ERA data)
October 1, 2026 at 2:36 AM
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zacklabe.com Zack Labe @zacklabe.com · May 21
Now check out the last 100 years of April sea surface temperature departures in the new ERSSTv6 dataset (up through 2026). 🌊

Learn more about this upgrade in doi.org/10.1175/JCLI... and doi.org/10.1175/JCLI...
May 21, 2026 at 12:23 PM
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themrneutron.bsky.social The Mr Neutron @themrneutron.bsky.social · Jul 12
A few days go by and that forecast mean continues to creep higher and higher.

climatesignal.net#enso
#ElNino
July 12, 2026 at 5:16 PM