**Recent forecasts from multiple sources, including the Korea Meteorological Administration and international models, indicate a high near 28–29°C for Seoul and Incheon on September 6 under clear skies and moderate northeast winds.** This consensus drives the market’s strong tilt toward 29°C (55.5% implied probability), with 28°C and 30°C as secondary outcomes reflecting minor model or station variations. Early September 2026 has featured above-average warmth and dry conditions across the Korean Peninsula, with recent daily maxima in the 29–31°C range before a slight cooling trend. Persistent high pressure, low humidity, and light-to-moderate winds favor efficient daytime heating without cloud cover or precipitation to suppress temperatures. Official stations (Incheon International Airport and Seoul) typically record values close to these guidance maxima, though urban effects and exact timing of peak heating introduce small uncertainty. Historical climatology for early September shows average highs around 27–28°C, but the current pattern supports readings at or slightly above that baseline. With resolution imminent, traders are weighting the tight clustering of 28–30°C forecasts; any last-minute model shift or observed deviation at the primary reporting station could adjust the 29°C lead.