? unverified
We are in a new run of months above 1.5°C, and with a strong El Niño still intensifying it is likely to last into 2027.
Not yet checkable. It settles on Copernicus's monthly ERA5 figures for October 2026 through January 2027; read charitably, every one must stay above 1.5°C. August (1.65°C) and September (1.63°C) began the run.