Recent official observations from Helsinki-area stations, including consistent reports of a daily maximum around 16°C under stable northwest winds and partly cloudy skies, have driven near-certain market consensus on this outcome. The Finnish Meteorological Institute and aligned forecasts from models like GFS show temperatures peaking near this level midday before cooling, aligning closely with the long-term September 13 average high of 15.9°C. This skin-in-the-game positioning reflects verified measurements rather than projections, with low volatility from minimal diurnal swings or precipitation. Only an unlikely late-hour spike or post-event data revision would alter the result.