💧October 2025: Wetter-than-average in southeastern Europe, especially the Balkans, with above-average rainfall in parts of Scandinavia, France, Ireland and eastern Spain. Drier-than-average across most of Iberia, northern Italy, Iceland and northeastern Europe. ⬇️

❄ October 2025: Arctic sea ice extent ranked eighth-lowest for October in the 47-year satellite record at 12% below average, with especially low concentrations in the Eurasian sector. Antarctic extent was the third-lowest for October, 6% below average.

🌡️ 2025 on track to be among top three warmest years. The #C3S Climate Bulletin reports that October was 1.55°C above pre-industrial levels, making it the third-warmest October on record and the first monthly average above 1.5°C since April. Explore the insights👉 climate.copernicus.eu/surface-air-...

New dataset: sea ice drift, tracked daily. Discover daily gridded data from satellite sensors showing how Arctic and Antarctic ice moves. Essential for tracking climate change impacts. Access the new dataset: cds.climate.copernicus.eu/datasets/sat... ⬇️

Have you explored our #CopernicusAtmosphere Methane Hotspot Explorer? Track methane hotspots and plumes, including emission rates, dates and locations and download the data.  Discover the app: apps.atmosphere.copernicus.eu/methane-expl...

How does the #cryosphere shape our climate, and how do we track its changes? Dr. Erik Loebel from #C3S shares a first-hand account on monitoring glaciers, ice sheets, sea ice and permafrost, and why it matters.  Read more: climate.copernicus.eu/c3s-behind-s...

Exposure to thermal stress – whether from extreme heat or cold – poses risks to our health. The Thermal Trace app from #C3S helps everyone stay informed. Just select a date and location on the map, choose a variable & visualise or even download charts & data. ⬇️

💡 ECMWF invites tenders to enhance the #C3S Energy Service. Lot 1: Co-develop online seasonal demonstrators and tools with champion energy users; Lot 2: maintenance of operational services for the energy sector. Tenders for one or both Lots accepted. Deadline: 18/12/2025.  ⬇️​

Three charts based on #CopernicusClimate data you shouldn’t miss this month: 📈 Climate warming stripes for global temperature in Sept. – @climatologist49.bsky.social 1️⃣ bsky.app/profile/clim...

🌍 It’s #WorldCitiesDay! The health of our cities depends on the quality of the air we breathe. Join us at the 5th EU Clean Air Forum (1–2 Dec, Bonn) co-hosted by @ecmwf.int & the @ec.europa.eu to discuss solutions for cleaner air & resilient urban environments.

New in the Climate Data Store (CDS): the ERA5-Drought dataset, with monthly meteorological drought indicators across accumulation windows from 1, 3, 6, 12, 24, 36 & 48 months from 1940 to today. Supports both deterministic & ensemble products on a 0.25° grid. More info ⬇️​

🎥 Laurence Rouil, Director of CAMS, highlights key milestones and next steps for #CopernicusAtmosphere. From near real-time methane tracking to space-based and AI-powered forecasts, CAMS is advancing air quality insights for Europe and beyond. ⬇️​

📉 Fires in Portugal and Spain during August leading to high surface concentrations of PM 2.5 - CAMS Sources: 1️⃣ bsky.app/profile/cope... Read the article: www.copernicus.eu/en/news/news...

📢 Call for tenders! Advance the #CopernicusAtmosphere system for tracking greenhouse gases. Improve land surface processes, including near real-time updates of vegetation (Leaf Area Index) and wetland area, enhancing (CO₂) and methane (CH₄) modelling. Deadline: 15/01/2026

Today at 14:30 at the 2025 #EUMETSAT Climate Symposium, #C3S Director Carlo Buontempo will share his expertise on the socio-economic benefits of climate data, with a specific focus on climate re-analysis and the role of satellite observations.

Arctic sea ice extent reached its annual minimum on 7 September 2025 at 5.07 million km² – the 14th lowest in the satellite record. Let's take a look at the past 12 months: 🧵 ⬇️

🌍 Today is #WorldEnergyDay! #CopernicusClimate and #CopernicusAtmosphere empower the renewable-energy sector with trusted data – from climate modelling and wind & solar forecasts to near real-time solar irradiance and air-quality insights for smarter energy systems.

Tropospheric nitrogen dioxide concentrations measured over Europe on 8 Oct. High concentrations can be seen in Italy’s Po Valley, along the north coast of Africa, and in other hotspots. NO2 is released during the combustion of fossil fuels and is known to exacerbate various health conditions. 😷

💡New Use Case! Enertec is transforming solar park management with #CopernicusAtmosphere solar radiation data. Integrated into Mondas’ PVisto® platform, CAMS data boosts efficiency and ensures more reliable energy yields. Learn more 🔗 atmosphere.copernicus.eu/providing-so...

Sharing the latest findings from the @wmo-global.bsky.social Greenhouse Gas Bulletin report: CO₂ levels have reached new highs. Our #CopernicusAtmosphere scientists @mparrington.bsky.social, A.Inness, E.Koffi, A. Agusti-Panareda and A.Visser contributed to this 21st ed. of the flagship report.

A new article from the EU Space Observer looks at air quality in Europe over summer 2025 and how #CopernicusAtmosphere tracked multiple events, from record-breaking wildfire emissions, to Saharan dust intrusions and ozone spikes, which put air quality and public health at risk.

📢 NEWS: Our data stores turn ARCO! #ECMWF has launched an #ARCO Data Lake for #CopernicusClimate and #CopernicusAtmosphere, optimised for cloud & AI, enabling faster, and more efficient access to key datasets. Read our article to learn more: climate.copernicus.eu/work-progres...

🌡️ The #C3S Climate Pulse app makes temperature data easy for everyone – compare decades, explore trends, zoom into regions and download or share your findings with a click. Tracking global surface air and sea temperatures has never been easier.

Today is International Day for Disaster Reduction. 🌍 Data from #C3S and #CopernicusAtmosphere power smart decision-making and risk management, from early warnings for extreme heat and drought to near real-time monitoring of hazardous air quality impacts, and much more.

Have you explored the September 2025 #C3S Climate Bulletin? It was the third-warmest Sept. globally on record, with Europe seeing pronounced warmth in Fennoscandia and eastern regions; average sea surface temp. also ranked third highest for the month. 🔗 climate.copernicus.eu/global-surfa...

📊 🌡️ The October 2025 edition of the #CopernicusClimate seasonal forecast is now available; the multi-system now includes an update to the CMCC forecast system. You can find data and plots from: climate.copernicus.eu/seasonal-for...

⏰ Deadline extended! Tenders will be accepted until 28 October to develop an advanced LLM-based search and discovery service for the Copernicus Climate Data Store (CDS). Help enhance climate data access - apply today! 🔗 climate.copernicus.eu/c3s2523-llm-...

What do you want to know about climate change in the Arctic and Antarctic? Submit your questions here! Our C3S senior scientist and climate change expert Julien Nicolas will answer in an upcoming video. Stay tuned!

💧September 2025: Wetter-than-average in northwestern & central Europe, Fennoscandia, parts of Italy, Croatia & eastern Spain, causing flooding in some areas. Drier than average across most of Iberia, the Norwegian coast, much of Italy, the Balkans, parts of Ukraine & western Russia.

❄ September 2025: daily Arctic sea ice extent reached its 14th-lowest annual minimum on record; monthly Arctic extent was 12% below average. Antarctic daily sea ice extent reached its 3rd-lowest annual maximum on record; 4th-lowest monthly extent.

🌡️ The September 2025 #C3S Climate Bulletin reports the third-warmest September globally, with an average surface air temperature of 16.11°C — 1.47°C above estimated pre-industrial levels. Global average sea surface temperature reached 20.72°C, the 3rd-highest on record for September.

🌍 New app features! The #C3S Climate Pulse app just got even better, with smoother navigation, fullscreen views, advanced chart editing, customisable downloads and new map projections. Watch our How To video and explore the app 👉 pulse.climate.copernicus.eu #CopernicusClimate

Out now! Version 2.0.0 of the Global land surface meteorological observations dataset (1755–present) is available in the #C3S Climate Data Store (CDS). Updated in situ coverage thru 2024 plus enhanced and consolidated data from worldwide sources. 🔗 cds.climate.copernicus.eu/datasets/ins...

Don’t miss this week’s online lectures at the 7th Joint Training Course on Atmospheric Composition hosted by @ecmwf.int, CAMS, @eumetsat.int and @esa.int (9–10 Oct 2025). Lectures are open to all and cover instruments & data, aerosol modelling & monitoring, ML applications and more.

Discover how the European Network of Transmission System Operators for Electricity (ENTSO-E) is partnering with #C3S to address climate uncertainty in European energy systems. By integrating #C3S data into its grid planning, ENTSO-E is helping ensure a secure, resilient energy future for Europe.

🔔 Dataset update: Daily & monthly CARRA Arctic regional reanalysis data (1991–present, 2.5km resolution) now live in the #C3S Climate Data Store (CDS) in addition to the CARRA datasets on different levels!🔗 cds.climate.copernicus.eu/datasets/rea... #CopernicusClimate

🎥 Check out our new video series! 'Ask a Scientist' features our #C3S and CAMS experts answering questions from our community. In our second episode, Francesca Guglielmo covers topics from the origins of climate change science to the role of oceans in global warming, and more!

A new app from #C3S supports the EU’s National Emission reduction Commitments Directive. NECD Explorer helps assess when flexibility can be applied using trusted ERA5 data. Users can assess country-aggregated extreme weather seasons with ease. 🔗 climate.copernicus.eu/c3s-app-info...

@ecmwf.int invites proposals to boost collaboration in addressing country-specific, transboundary or transnational atmospheric challenges and associated impacts, via the CAMS National Collaboration Programme (NCP).

📉 CAMS data revealed repeated episodes of transatlantic #smoke, #Saharan dust - CAMS 📉 Record carbon emissions from #wildfires in the EU and UK – CAMS via @adamvaughan.bsky.social 📉 #ozone hole reaching a larger-than-average area mid-September – CAMS

Three charts based on #CopernicusClimate data you shouldn’t miss this month: 📈 Western Europe saw third major summer #heatwave - #C3S 📈 Average sea surface temperature anomaly for August 2025 – @financialtimes.com 📈 Record warm in the northern Pacific Ocean - @weatherprof.bsky.social

Are you a #C3S Atlas user? Your feedback can help shape its future! Tell us how you use the Atlas and what improvements you’d like to see. All responses are anonymous and support future development. Take the survey 👇 ec.europa.eu/eusurvey/run...

🔔 Register now for the #C3S User Workshop on 20 Oct. in Prague, an in-person event for users to explore climate data tools and real-world applications, with hands-on training and networking opportunities. 📅 Sign up by 30 September: climate.copernicus.eu/c3s-user-eng...

⏰ Just a few days left! Apply by 30 Sept. for a grant to strengthen national climate action via the C3S National Collaboration Programme (NCP). Drive uptake of #C3S data, build capacity and foster cross-country collaboration. 🔗 Apply climate.copernicus.eu/grants

Online lectures for the 7th Joint Training Course on Atmospheric Composition hosted by @ecmwf.int , CAMS, @eumetsat.int and @esa.int start next week (1–2 & 9–10 Oct 2025) and are open to all. Lectures cover observations, modelling and monitoring of aerosols and air quality.

A challenging summer for air quality saw the highest wildfire emissions in 23 years in Europe & the UK, driven by wildfires in Iberia. CAMS data also revealed repeated episodes of transatlantic smoke, Saharan dust and ozone spikes. Read the article: atmosphere.copernicus.eu/highest-wild...

🌍 Calling all Czech climate information users! On 20.10, join the C3S Czech User Engagement Workshop to: ✅ Discover new tools ✅ Exchange ideas with peers ✅ Shape the future of #ClimateServices By @copernicusecmwf.bsky.social, ČHMÚ & @sciencecharles.bsky.social. 👉🏼 Register at tinyurl.com/z7pzedr6

This year, the ozone hole presented an early development, reaching a larger-than-average area mid-September. On #WorldOzoneDay, #CopernicusAtmosphere continues to provide tools for everyone to monitor the health of our planet.

From daily tracking of the Antarctic ozone hole to open-access data, CAMS helps protect the ozone layer, safeguarding people and planet. On the #WorldOzoneDay, we highlight CAMS’ role in global efforts towards ozone recovery. Read the article for insights 🔗 atmosphere.copernicus.eu/preserving-o...

Meet the team behind a decade of global climate updates, from scientists to analysts and technical experts. These are the people transforming climate data into actionable insight in the monthly #C3S Climate Bulletin. Read the article climate.copernicus.eu/ten-years-c3...