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synthesis.berkeleyearth.org

Observations drawn from BEST-HR, along with downscaled, bias-corrected warming projections drawn from our new climate model synthesis product, are now available for more than 8,000 global cities via our new climate platform Synthesis. Access is free with registration: synthesis.berkeleyearth.org

Berkeley Earth - Interactive Climate Data Visualization Platform

Explore historical climate data and future projections for cities, regions, and countries worldwide

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Berkeley Earth High-Resolution Data Set Access Request

Access to the complete suite of BEST-HR derived products, including TMAX/TMIN, land and ocean subsets, and city-level gridded data, can be requested here: tinyurl.com/4u559w5k For those currently using BEST-HR, formal citation details are (finally) available in the preprint link above.

tinyurl.com

Please complete the form below. You will receive an email with access instructions within 24 hours. For technical questions about the high-resolution data products, please contact data@berkeleyeart...

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Our high-res product includes uncertainty ensembles that allow for propagation of errors into derived metrics, offering a globally complete, monthly resolved temperature product suitable for applications ranging from global trend analysis to regional climate impact assessments.

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Berkeley Earth Surface Temperature – High-Resolution (BEST-HR): a 0.25° Global Gridded Temperature Data Set for Climate Monitoring

News we could not be more excited to share: the description paper of our high-resolution dataset is now available for review and comment at ESSD. The record provides global coverage at 0.25° resolution, built from 58,311 weather stations extending back to 1750. Pre-print: tinyurl.com/9dw7jbnf

tinyurl.com

Abstract. We present version 2 of the Berkeley Earth Surface Temperature dataset, a global observational temperature record that now features enhanced spatial resolution (0.25° × 0.25°) and a new regr...

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Zeke Hausfather @zekehausfather.com · 01/09/2026

The emissions scenarios underlying the next generation of climate model runs that will be featured in the upcoming IPCC 7th Assessment Report are officially out! I have a big new explainer over at Carbon Brief taking an in-depth look at what they mean and whats changed: www.carbonbrief.org/...

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Berkeley Earth @berkeleyearth.org · 17/08/2026

To what extent can the upcoming El Niño give us a preview of a future, warmer climate? Over at the Climate Brink, @zekehausfather.com and @andrewdessler.com break down the scientific nuances behind framing El Niño as a "time machine" to predict future the climate. tinyurl.com/47ny7fjh

tinyurl.com

Is this El Niño a glimpse of a future, hotter Earth?

There are important differences between long-term global warming and El Niño warming

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Robert Rohde @rarohde.bsky.social · 14/08/2026

With record-breaking heatwaves, France just had both its warmest June and July on record. Systematic collection of weather data basically began in Western Europe, giving Europe the longest thermometer-based histories in the world. After more than 250 years, we have changed the climate. 🧪

Time series graph of June-July average temperature in France relative to the 1850-1900 baseline. Data from Berkeley Earth.

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Berkeley Earth @berkeleyearth.org · 14/08/2026

“Human emissions are adding a permanent El Niño worth of heat to the climate system each decade.” Berkeley Earth's @zekehausfather.com spoke with @bennollweather.bsky.social @washingtonpost.com about the future preview coming via this year's record-setting El Niño. Gift link: wapo.st/4htwiBY

washingtonpost.com

We’ll soon get a glimpse of future temperatures, thanks to this record El Niño

It will act like a climate time machine, temporarily pushing temperatures to levels that otherwise might not be felt for a decade or so.

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Berkeley Earth @berkeleyearth.org · 14/08/2026

Berkeley Earth's Temperature Update for July 2026 is now available, including updates on the rapidly-strengthening El Niño and what we can expect from the remainder of 2026. The full text is available here: berkeleyearth.org/july-2026-te...

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Robinson Meyer @robinsonmeyer.bsky.social · 13/08/2026

NEW SHIFT KEY: I spoke to the great @zekehausfather.com about why the current El Niño is breaking records (and poised to break more), what that will mean for global weather patterns, and whether we can now definitively say global warming is accelerating heatmap.news/podcast/shif...

heatmap.news

Why This El Niño Looks Like a Monster

Rob checks in on this season’s supercharged ocean temperatures with climate researcher Zeke Hausfather.

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Zeke Hausfather @zekehausfather.com · 12/08/2026

We will be having our Berkeley Earth monthly press briefing tomorrow at 8 AM Pacific, covering July global temperatures, the rapidly developing El Nino event, and what to expect for the remainder of 2026 and for 2027. Register here to join: us02web.zoom.us/webi...

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Berkeley Earth @berkeleyearth.org · 11/08/2026

An eventful month, an eventful year, and we are still months away from the peak of an already record-setting El Niño...join us this Thurs 8/13 for updates from our July report, including the most recent El Niño forecasts, followed by live Q&A. Registration is required: tinyurl.com/mvpuwhej

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Zeke Hausfather @zekehausfather.com · 05/08/2026

The rise in Niño 3.4 region sea surface temperatures over the past few weeks has been nothing short of astonishing. We are now hotter than any days during the 1997/1998 super El Niño event, and we are still many months from the peak.

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Berkeley Earth @berkeleyearth.org · 27/07/2026

More coverage of our analysis of the current #ElNiño model forecasts from last week's monthly climate briefing in @wired.com. We'll be tracking the progress of the current El Niño in the months to come...register now to receive invites to future briefings, along updates: ➡️ tinyurl.com/ys9s4932

wired.com

The 2026 El Niño Is on Track to Be the Strongest on Record

This climate phenomenon could cause a massive global temperature spike and cause economic losses of $10 trillion by 2032.

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Reposted by Berkeley Earth

Robert Rohde @rarohde.bsky.social · 24/07/2026

See the alternating warm and cold patches in the Northern mid-latitudes? That's the imprint of a quasi-stationary Rossby wave (i.e. oscillations in the jet stream). It's rare to see it so clearly in a monthly-average temperature map.

Map of temperature anomalies in June 2025 relative to the 1951-1980 average.

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James Dinneen @jamesdinneen.bsky.social · 23/07/2026

It's not quite "gobsmackingly bananas" but monster forecasts for the record El Nino brewing the Pacific Ocean get pretty close. Here's what to make of it in my first for @nature.com: 🧪 www.nature.com/articles/d41...

nature.com

This El Niño is set to be the largest on record by a ‘mind-blowing margin’

Forecasters predict that the monster climate pattern will combine with global warming to push global temperatures in 2027 to new heights.

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Berkeley Earth @berkeleyearth.org · 23/07/2026

Just under an hour left to register for today’s monthly briefing, where we’ll share findings from our June update, as well as the latest on the current “super” El Niño. Hope to see you there. Link to register: tinyurl.com/4nfnh794

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Berkeley Earth @berkeleyearth.org · 20/07/2026

The current El Niño cycle has officially entered "Super" territory, but the peak impacts are still months away. We'll be discussing updated model forecasts and what this means for the remainder of 2026 at our Monthly Climate Briefing this Thurs at 8amPDT/5pmCET. Join us: tinyurl.com/4nfnh794

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Berkeley Earth @berkeleyearth.org · 17/07/2026

Summer 2026 is shaping up to be memorable, but the peak of the current El Niño cycle still lies ahead. Join us next week as @rarohde.bsky.social and @zekehausfather.com share updates from our June 2026 report, and outline what the rest of 2026 holds. Registration required ➡️ tinyurl.com/4nfnh794

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Zeke Hausfather @zekehausfather.com · 17/07/2026

Climate change does not cause wildfires, but hot and dry conditions make them much more likely to spread. In Canada, 9 of the 10 worst wildfire years were both dryer and hotter than normal. And these fires are burning in areas that were historically not managed or suppressed.

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Zeke Hausfather @zekehausfather.com · 13/07/2026

With all the July model runs now in, it is very likely that 2026 will see the largest El Niño event since records began in the late 1800s – and potentially by a truly mind-blowing margin. The median estimate is now 3.6C, roughly 0.8C hotter than the prior record (2.75C). www.theclimatebrink....

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synthesis.berkeleyearth.org

We're just getting started. Synthesis historical data will be updated monthly alongside other Berkeley Earth datasets, and the set of features, cities, and options supported will gradually expand over time. Thanks for your support. synthesis.berkeleyearth.org

Berkeley Earth

Interactive climate data visualization platform using Berkeley Earth data

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The ambitious goal of the Synthesis platform is to easily connect past & future climate change, at a local scale, in a way that meets the needs of the general public and enables key stakeholders like policymakers, builders, and farmers prepare with adaptation and resilience. 16/

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This data has already been used in partnership with @c40cities.bsky.social to do a global study on projected changes in cooling demand as the world warms. (More on that coming soon). We expect to find many more applications for this bias-corrected local and regional data. 15/

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Currently only ~100 cities feature these expanded derived metrics, but we are only getting started. Additional cities, additional metrics, and additional ways of working with the data will be added as resources allow. 14/

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We also provide Cooling Degree Days, a estimate of the demand for artificial cooling. The chart shown here is for Paris, France, where projected cooling demand has doubled over the last 40 years, and is expected to redouble during this century under current warming trends. 13/

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For selected cities, we also provide daily derived metrics, such as days above 35 °C / 95 °F. Example shown here for Houston, TX, with both historical data and model projections. Comparing models and observations in a consistent way helps to understand model reliability. 12/

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The climate projections we present are a unique bias-corrected Synthesis that spans the CMIP6 climate model archive (~45 models). Historical observations are used to bias correct and select reliable models for each region, ensuring consistency from past to future. 11/

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The image for any city or region and the data appearing within it can be exported with a click of the export button. Bulk data and commercial use can be requested separately at this google form: docs.google.com/forms/d/e/1F... 10/

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In addition to regional averages, similar charts are also available for thousands of cities. Shown here is the annual average temperature for Mumbai, India. Large cities in less developed countries are well represented. 9/

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Toggles let you switch between monthly and annual series as well as average, maximum, and minimum temperature changes. Both Fahrenheit and Celsius are also available. 8/

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The search box can help you directly find cities, regions, and stations. Loading up a region, like California shown here, gives both historical data and future projections. Current policy aligned SSP2-4.5 is the default, but there are up to five scenarios to choose from. 7/

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