Berkeley Earth is releasing an early access edition of our new high-resolution temperature dataset. This dataset promises unprecedented regional & local resolution for understanding past climate changes, with a 0.25° x 0.25° spatial resolution. https://t.co/vTBbkJAEvQ 🧵

The Northern Pacific Ocean is currently smashing temperature records. And it is reaching these levels far earlier than the current generation of climate models had expected. A short thread 🧵

Back with Our Monthly Press Briefing! On Wed 9/17 at 8am PDT / 5pm CET, the Berkeley Earth team will share updates from the August 2025 Temperature Report and discuss the latest global climate signals. Register:

For more information on recent weather and climate in June 2025, please visit our monthly temperature report. https://t.co/mzRfyDgG6m 13/13

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/

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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/

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. https://t.co/Hc7z0ynLBS 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/

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. https://t.co/WXcugsiX9I 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/

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/

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/

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/

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 global average temperature in June 2025 was 1.31 ± 0.10°C (2.36 ± 0.19 °F) above the 1850-1900 average, the 3rd warmest directly measured June. This was only slightly cooler than May 2025, but is sharply lower than the first few months of 2025. 2/

Temperature Update for June 2025 Third warmest June in the instrumental record. Similar conditions to May, but sharply cooler than earlier in 2025. Neutral conditions in the Pacific. 2025 is very likely to be the 2nd or 3rd warmest year. https://t.co/mzRfyDgG6m 🧵

Berkeley Earth's next monthly climate briefing, looking back on June temperatures, will be held online on July 10th at 8 AM PT / 11 AM ET / 5 PM CET. https://t.co/qU3Y7QP98r It's open for anyone, but geared toward the news media. See you there.

The argument that urban heat islands are biasing temperature records continually comes up. There is a long history of papers showing it's effect minimal globally (and the world is 70% oceans with no urbanization). My colleague @RARohde has a neat updated analysis for global land:

One of the most essential tests of science is reproducibility. For this chart, I separated our weather station archive into 20 independent 5% samples and computed the global land average of each. The samples vary a bit, but each one paints a similar picture of warming.

For more information on recent weather and climate in May 2025, please visit our monthly temperature report. https://t.co/kMmLqDjfsY 12/12

The recent exceptional warming peak in 2023/2024 is now likely 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. 11/