Recent global temperature observations position the 1.35–1.39°C bin as the leading outcome for September 2026, driven by the long-term anthropogenic warming trend superimposed on ENSO-neutral conditions. Satellite and surface station data from agencies like NOAA and NASA show month-to-date anomalies tracking near historical highs for the period, consistent with the 0.2°C-per-decade rate observed since 1980. Model ensembles indicate limited short-term cooling potential without a strong La Niña emergence, while measurement methodologies averaging multiple datasets reduce uncertainty around the final monthly value. Upcoming final September reports from official monitoring bodies will likely refine trader positioning ahead of resolution.