Berkeley Earth
@berkeleyearth.org
We're an independent 501c3 non-profit organization working to make climate data open and accessible.
📍Berkeley, CA
＠ www.berkeleyearth.org
💲donate.berkeleyearth.org
📍Berkeley, CA
＠ www.berkeleyearth.org
💲donate.berkeleyearth.org
This #GivingTuesday, we’re reflecting on a year of change and what comes next.
In 2026, Berkeley Earth will launch Synthesis, our most significant update yet—built to deliver clear, local, decision-ready climate intelligence.
💙 Support our work: donate.berkeleyearth.org?mc_cid=58fa7...
In 2026, Berkeley Earth will launch Synthesis, our most significant update yet—built to deliver clear, local, decision-ready climate intelligence.
💙 Support our work: donate.berkeleyearth.org?mc_cid=58fa7...
December 2, 2025 at 10:02 PM
This #GivingTuesday, we’re reflecting on a year of change and what comes next.
In 2026, Berkeley Earth will launch Synthesis, our most significant update yet—built to deliver clear, local, decision-ready climate intelligence.
💙 Support our work: donate.berkeleyearth.org?mc_cid=58fa7...
In 2026, Berkeley Earth will launch Synthesis, our most significant update yet—built to deliver clear, local, decision-ready climate intelligence.
💙 Support our work: donate.berkeleyearth.org?mc_cid=58fa7...
The current year is expected to conclude as the 3rd warmest in the instrumental record (94% chance), behind 2023 and 2024 and slightly above the long-term trend.
Further, it is unlikely that 2025 will exceed the 1.5 °C threshold.
11/
Further, it is unlikely that 2025 will exceed the 1.5 °C threshold.
11/
November 21, 2025 at 11:06 AM
The current year is expected to conclude as the 3rd warmest in the instrumental record (94% chance), behind 2023 and 2024 and slightly above the long-term trend.
Further, it is unlikely that 2025 will exceed the 1.5 °C threshold.
11/
Further, it is unlikely that 2025 will exceed the 1.5 °C threshold.
11/
IRI/CPC long-range forecasts expect that this new La Niña will likely dissipate by early 2026, with increasing odds of a new El Niño event in mid to late 2026.
iri.columbia.edu/our-expertis...
10/
iri.columbia.edu/our-expertis...
10/
November 21, 2025 at 11:06 AM
IRI/CPC long-range forecasts expect that this new La Niña will likely dissipate by early 2026, with increasing odds of a new El Niño event in mid to late 2026.
iri.columbia.edu/our-expertis...
10/
iri.columbia.edu/our-expertis...
10/
After recent neutral conditions, NOAA has officially noted the return of La Niña conditions, marked by relative cooling in the Pacific.
The current La Niña is expected to be weak and short-lived, but may increase the chance of Arctic outbursts in North America this winter.
9/
The current La Niña is expected to be weak and short-lived, but may increase the chance of Arctic outbursts in North America this winter.
9/
November 21, 2025 at 11:06 AM
After recent neutral conditions, NOAA has officially noted the return of La Niña conditions, marked by relative cooling in the Pacific.
The current La Niña is expected to be weak and short-lived, but may increase the chance of Arctic outbursts in North America this winter.
9/
The current La Niña is expected to be weak and short-lived, but may increase the chance of Arctic outbursts in North America this winter.
9/
On land, October 2025 was the third warmest October, continuing a rebound from modestly cooler conditions in June/July.
In the oceans, October was the 4th warmest, and cooled significantly compared to September.
8/
In the oceans, October was the 4th warmest, and cooled significantly compared to September.
8/
November 21, 2025 at 11:06 AM
On land, October 2025 was the third warmest October, continuing a rebound from modestly cooler conditions in June/July.
In the oceans, October was the 4th warmest, and cooled significantly compared to September.
8/
In the oceans, October was the 4th warmest, and cooled significantly compared to September.
8/
The continent wide monthly-average temperature for Antarctica was also record high in October 2025, continuing a long-term warming trend.
On an annual basis, Antarctica has been the slowest warming of any continent.
7/
On an annual basis, Antarctica has been the slowest warming of any continent.
7/
November 21, 2025 at 11:06 AM
The continent wide monthly-average temperature for Antarctica was also record high in October 2025, continuing a long-term warming trend.
On an annual basis, Antarctica has been the slowest warming of any continent.
7/
On an annual basis, Antarctica has been the slowest warming of any continent.
7/
4% of land and 4% of ocean had locally record warm monthly averages in October 2025.
Widespread record warmth in the Northern Pacific continues.
No areas of record cold monthly averages were observed.
6/
Widespread record warmth in the Northern Pacific continues.
No areas of record cold monthly averages were observed.
6/
November 21, 2025 at 11:06 AM
4% of land and 4% of ocean had locally record warm monthly averages in October 2025.
Widespread record warmth in the Northern Pacific continues.
No areas of record cold monthly averages were observed.
6/
Widespread record warmth in the Northern Pacific continues.
No areas of record cold monthly averages were observed.
6/
Spatially, October 2025 was notable for relative warmth in North America, Australia, Antarctica, the Arctic, parts of Asia and parts of Africa.
Record warmth continues across parts of the North Pacific.
Unusually cool conditions were present in Central Asia.
5/
Record warmth continues across parts of the North Pacific.
Unusually cool conditions were present in Central Asia.
5/
November 21, 2025 at 11:06 AM
Spatially, October 2025 was notable for relative warmth in North America, Australia, Antarctica, the Arctic, parts of Asia and parts of Africa.
Record warmth continues across parts of the North Pacific.
Unusually cool conditions were present in Central Asia.
5/
Record warmth continues across parts of the North Pacific.
Unusually cool conditions were present in Central Asia.
5/
It is expected that 2025 will likely finish the year with a similar pattern to recent months, slightly cooler than 2023 and 2024, but still above all the earlier measured years.
4/
4/
November 21, 2025 at 11:06 AM
It is expected that 2025 will likely finish the year with a similar pattern to recent months, slightly cooler than 2023 and 2024, but still above all the earlier measured years.
4/
4/
Though still cooler than October 2023 and 2024, the month-to-month time series of global anomalies has rebounded off of modestly cooler values during June and July, and is again above the long-term trend line.
3/
3/
November 21, 2025 at 11:06 AM
Though still cooler than October 2023 and 2024, the month-to-month time series of global anomalies has rebounded off of modestly cooler values during June and July, and is again above the long-term trend line.
3/
3/
October 2025 was 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average.
This is the 3rd warmest October in the instrumental record (i.e. since 1850), behind only the El Niño boosted warmth in 2023 and 2024.
2/
This is the 3rd warmest October in the instrumental record (i.e. since 1850), behind only the El Niño boosted warmth in 2023 and 2024.
2/
November 21, 2025 at 11:06 AM
October 2025 was 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average.
This is the 3rd warmest October in the instrumental record (i.e. since 1850), behind only the El Niño boosted warmth in 2023 and 2024.
2/
This is the 3rd warmest October in the instrumental record (i.e. since 1850), behind only the El Niño boosted warmth in 2023 and 2024.
2/
Temperature Update for October 2025
Third warmest October in the instrumental record.
Similar conditions to September.
A weak La Niña returns in the Pacific.
2025 is very likely to be the 3rd warmest year.
🧵🧪🌊
Third warmest October in the instrumental record.
Similar conditions to September.
A weak La Niña returns in the Pacific.
2025 is very likely to be the 3rd warmest year.
🧵🧪🌊
November 21, 2025 at 11:06 AM
Temperature Update for October 2025
Third warmest October in the instrumental record.
Similar conditions to September.
A weak La Niña returns in the Pacific.
2025 is very likely to be the 3rd warmest year.
🧵🧪🌊
Third warmest October in the instrumental record.
Similar conditions to September.
A weak La Niña returns in the Pacific.
2025 is very likely to be the 3rd warmest year.
🧵🧪🌊
🌍 Berkeley Earth Monthly Press Briefing
📅 Wed, Nov 19 | 8 AM PDT / 5 PM CET
Get the latest insights from our October 2025 Temperature Report and join a live Q&A with
@rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team.
🔗 Register: us02web.zoom.us/webinar/regi...
📅 Wed, Nov 19 | 8 AM PDT / 5 PM CET
Get the latest insights from our October 2025 Temperature Report and join a live Q&A with
@rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team.
🔗 Register: us02web.zoom.us/webinar/regi...
November 14, 2025 at 8:29 PM
🌍 Berkeley Earth Monthly Press Briefing
📅 Wed, Nov 19 | 8 AM PDT / 5 PM CET
Get the latest insights from our October 2025 Temperature Report and join a live Q&A with
@rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team.
🔗 Register: us02web.zoom.us/webinar/regi...
📅 Wed, Nov 19 | 8 AM PDT / 5 PM CET
Get the latest insights from our October 2025 Temperature Report and join a live Q&A with
@rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team.
🔗 Register: us02web.zoom.us/webinar/regi...
🌍 Berkeley Earth Monthly Press Briefing
📅 Thur 10/23 | 8 AM PDT / 5 PM CET
Join @rarohde.bsky.social , @hausfath.bsky.social, and our team for insights from the September 2025 Temperature Report + a live Q&A.
🔗 Register: us02web.zoom.us/webinar/regi...
📅 Thur 10/23 | 8 AM PDT / 5 PM CET
Join @rarohde.bsky.social , @hausfath.bsky.social, and our team for insights from the September 2025 Temperature Report + a live Q&A.
🔗 Register: us02web.zoom.us/webinar/regi...
October 16, 2025 at 3:56 PM
🌍 Berkeley Earth Monthly Press Briefing
📅 Thur 10/23 | 8 AM PDT / 5 PM CET
Join @rarohde.bsky.social , @hausfath.bsky.social, and our team for insights from the September 2025 Temperature Report + a live Q&A.
🔗 Register: us02web.zoom.us/webinar/regi...
📅 Thur 10/23 | 8 AM PDT / 5 PM CET
Join @rarohde.bsky.social , @hausfath.bsky.social, and our team for insights from the September 2025 Temperature Report + a live Q&A.
🔗 Register: us02web.zoom.us/webinar/regi...
Back with Our Monthly Press Briefing!
Join @rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team on Wed 9/17 at 8am PDT / 5pm CET.
We’ll share updates from the August 2025 Temperature Report and discuss the latest global climate signals.
Register: us02web.zoom.us/webinar/regi...
Join @rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team on Wed 9/17 at 8am PDT / 5pm CET.
We’ll share updates from the August 2025 Temperature Report and discuss the latest global climate signals.
Register: us02web.zoom.us/webinar/regi...
September 10, 2025 at 7:01 PM
Back with Our Monthly Press Briefing!
Join @rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team on Wed 9/17 at 8am PDT / 5pm CET.
We’ll share updates from the August 2025 Temperature Report and discuss the latest global climate signals.
Register: us02web.zoom.us/webinar/regi...
Join @rarohde.bsky.social, @hausfath.bsky.social, and the Berkeley Earth team on Wed 9/17 at 8am PDT / 5pm CET.
We’ll share updates from the August 2025 Temperature Report and discuss the latest global climate signals.
Register: us02web.zoom.us/webinar/regi...
The recent exceptional warming peak in 2023/2024 is dissipating, and near-term temperatures are expected to return closer to the long-term trend.
However, the rapid pace of man-made global warming is expected to continue, and more record years are inevitable.
12/
However, the rapid pace of man-made global warming is expected to continue, and more record years are inevitable.
12/
July 11, 2025 at 12:40 PM
The recent exceptional warming peak in 2023/2024 is dissipating, and near-term temperatures are expected to return closer to the long-term trend.
However, the rapid pace of man-made global warming is expected to continue, and more record years are inevitable.
12/
However, the rapid pace of man-made global warming is expected to continue, and more record years are inevitable.
12/
With six months completed, 2025 is very likely to finish as either the 2nd warmest (35% chance) or 3rd warmest (64% chance) year on record.
Following recent cooling, only a slight 1% chance of record warmth in 2025 remains.
11/
Following recent cooling, only a slight 1% chance of record warmth in 2025 remains.
11/
July 11, 2025 at 12:40 PM
With six months completed, 2025 is very likely to finish as either the 2nd warmest (35% chance) or 3rd warmest (64% chance) year on record.
Following recent cooling, only a slight 1% chance of record warmth in 2025 remains.
11/
Following recent cooling, only a slight 1% chance of record warmth in 2025 remains.
11/
The Pacific Ocean remains in a neutral condition.
An ~50% chance exists that neutral conditions continue through the rest of the year, with a ~40% chance of La Niña returning late in the year, and only a modest chance of El Niño developing.
iri.columbia.edu/our-expertis...
10/
An ~50% chance exists that neutral conditions continue through the rest of the year, with a ~40% chance of La Niña returning late in the year, and only a modest chance of El Niño developing.
iri.columbia.edu/our-expertis...
10/
July 11, 2025 at 12:40 PM
The Pacific Ocean remains in a neutral condition.
An ~50% chance exists that neutral conditions continue through the rest of the year, with a ~40% chance of La Niña returning late in the year, and only a modest chance of El Niño developing.
iri.columbia.edu/our-expertis...
10/
An ~50% chance exists that neutral conditions continue through the rest of the year, with a ~40% chance of La Niña returning late in the year, and only a modest chance of El Niño developing.
iri.columbia.edu/our-expertis...
10/
The global ocean average has continued to cool since the El Niño related peak in 2023/2024.
Since April, the ocean average has fallen below the long-term trend. Modest additional cooling remains likely.
9/
Since April, the ocean average has fallen below the long-term trend. Modest additional cooling remains likely.
9/
July 11, 2025 at 12:40 PM
The global ocean average has continued to cool since the El Niño related peak in 2023/2024.
Since April, the ocean average has fallen below the long-term trend. Modest additional cooling remains likely.
9/
Since April, the ocean average has fallen below the long-term trend. Modest additional cooling remains likely.
9/
Relative to the long-term trend, June had one of the strongest temperature excursions on record in the Western Mediterranean.
A slightly larger excursion occurred in June 2003, preceding severe July & August heat waves that killed ~70,000 Europeans.
en.wikipedia.org/wiki/2003_Eu...
8/
A slightly larger excursion occurred in June 2003, preceding severe July & August heat waves that killed ~70,000 Europeans.
en.wikipedia.org/wiki/2003_Eu...
8/
July 11, 2025 at 12:40 PM
Relative to the long-term trend, June had one of the strongest temperature excursions on record in the Western Mediterranean.
A slightly larger excursion occurred in June 2003, preceding severe July & August heat waves that killed ~70,000 Europeans.
en.wikipedia.org/wiki/2003_Eu...
8/
A slightly larger excursion occurred in June 2003, preceding severe July & August heat waves that killed ~70,000 Europeans.
en.wikipedia.org/wiki/2003_Eu...
8/
June 2025 saw record warmth in the Western Mediterranean Sea.
This pattern, associated with the June heat dome over Western Europe, may further promote strong heat waves in Europe during the rest of summer.
7/
This pattern, associated with the June heat dome over Western Europe, may further promote strong heat waves in Europe during the rest of summer.
7/
July 11, 2025 at 12:40 PM
June 2025 saw record warmth in the Western Mediterranean Sea.
This pattern, associated with the June heat dome over Western Europe, may further promote strong heat waves in Europe during the rest of summer.
7/
This pattern, associated with the June heat dome over Western Europe, may further promote strong heat waves in Europe during the rest of summer.
7/
A relatively modest 3% of the Earth's surface registered a locally record high monthly average during June 2025 (4% of oceans / 2% of land).
No significant areas had near record lows.
6/
No significant areas had near record lows.
6/
July 11, 2025 at 12:40 PM
A relatively modest 3% of the Earth's surface registered a locally record high monthly average during June 2025 (4% of oceans / 2% of land).
No significant areas had near record lows.
6/
No significant areas had near record lows.
6/
Spatially, warmth remained widespread in June 2025, though monthly average records were relatively rare.
Warmth was particularly noteworthy in Western Europe and Central Asia.
Unusual cooling was present in India, Australia, and S. America.
5/
Warmth was particularly noteworthy in Western Europe and Central Asia.
Unusual cooling was present in India, Australia, and S. America.
5/
July 11, 2025 at 12:40 PM
Spatially, warmth remained widespread in June 2025, though monthly average records were relatively rare.
Warmth was particularly noteworthy in Western Europe and Central Asia.
Unusual cooling was present in India, Australia, and S. America.
5/
Warmth was particularly noteworthy in Western Europe and Central Asia.
Unusual cooling was present in India, Australia, and S. America.
5/
On land June 2025 was nearly identical to May 2025, continuing the sharp cooling observed last month.
Nevertheless, the land average was still the fifth warmest for June in the observational record.
4/
Nevertheless, the land average was still the fifth warmest for June in the observational record.
4/
July 11, 2025 at 12:40 PM
On land June 2025 was nearly identical to May 2025, continuing the sharp cooling observed last month.
Nevertheless, the land average was still the fifth warmest for June in the observational record.
4/
Nevertheless, the land average was still the fifth warmest for June in the observational record.
4/
The relative cooling in May and June 2025 has fallen below the long-term trend line.
The exceptional warmth in 2023/2024 appears to have dissipated, and in the short-term we expect global means to stay closer to the long-term trend.
3/
The exceptional warmth in 2023/2024 appears to have dissipated, and in the short-term we expect global means to stay closer to the long-term trend.
3/
July 11, 2025 at 12:40 PM
The relative cooling in May and June 2025 has fallen below the long-term trend line.
The exceptional warmth in 2023/2024 appears to have dissipated, and in the short-term we expect global means to stay closer to the long-term trend.
3/
The exceptional warmth in 2023/2024 appears to have dissipated, and in the short-term we expect global means to stay closer to the long-term trend.
3/