The high implied probability for a record-warm month in 2026 is driven by the accelerating transition from ENSO-neutral conditions to El Niño, with NOAA’s Climate Prediction Center assigning an 82% chance of emergence by May–July and a 96% likelihood of persistence through the Northern Hemisphere winter. This natural variability is expected to amplify the long-term anthropogenic warming trend that has already pushed 2024 to the hottest year on record and 2025 to second place, with early 2026 monthly anomalies near 1.47–1.48 °C above pre-industrial levels. Model consensus points to a potentially strong or super El Niño peaking late in the year, raising the odds that late-2026 months will exceed prior peaks on datasets such as ERA5 or GISS. Ongoing multi-model runs and seasonal outlooks from the WMO and Copernicus will provide the next key updates traders are monitoring.