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How Much Warmer Is the Planet Today?
Global mean surface air temperature against the 1991–2020 average for the same day, °C, daily, with the trailing 365-day mean
Plays the chart through its history. Pauses are where the data set a record or moved most.
Copernicus Climate Change Service, ERA5 reanalysis (Climate Pulse). Generated using Copernicus Climate Change Service information; neither the European Commission nor ECMWF is responsible for any use made of it. The newest days are preliminary for about three days. The 365-day mean is a Palanor calculation.
The world’s average surface air temperature each day against the 1991–2020 normal for that date, from the Copernicus ERA5 reanalysis, published two days behind real time.
What this chart reads
- Global Daily Temperature Anomaly vs 1991–2020 (ERA5) · °Cas “Daily anomaly”latest 2026-10-20
- Global Temperature Anomaly, Trailing 365-Day Mean (ERA5) · °Cas “Trailing 365-day mean”latest 2026-10-20
Sources
Global Daily Temperature Anomaly vs 1991–2020 (ERA5) · °C. Source: Copernicus Climate Change Service (C3S) / ECMWF, Climate Pulse, ERA5 daily global series: https://pulse.climate.copernicus.eu (file https://sites.ecmwf.int/data/climatepulse/data/series/era5_daily_series_2t_global.csv). Generated using Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Licence to Use Copernicus Products (version 1.2), §4.2: "Access to Copernicus Products is given for any purpose in so far as it is lawful". Read daily.
Global Temperature Anomaly, Trailing 365-Day Mean (ERA5) · °C. Source: Palanor calculation (src/lib/climate/era5-pulse.ts) from Copernicus Climate Change Service (C3S) / ECMWF, Climate Pulse, ERA5 daily global series: https://pulse.climate.copernicus.eu (file https://sites.ecmwf.int/data/climatepulse/data/series/era5_daily_series_2t_global.csv). Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Licence to Use Copernicus Products (version 1.2), §4.2: "Access to Copernicus Products is given for any purpose in so far as it is lawful". Read daily.
Charts are drawn from Palanor's signal library and recomputed from source data on every view. Transformations (changes, indexing, year-on-year rates) are Palanor's.