Recent meteorological model consensus from agencies monitoring the region points to stable high-pressure conditions and clear to partly cloudy skies over Busan, supporting efficient nighttime radiative cooling that aligns with an 18°C minimum on September 10. Current observations and ensemble forecasts show overnight temperatures settling near this threshold, consistent with late-summer climatology for the area where average September lows hover around 20°C but can dip lower under calm northerly flow. Trader positioning reflects this strong data alignment, with the 99.5% implied probability for 18°C indicating limited uncertainty. A realistic challenge would require unexpected increases in cloud cover, stronger winds, or a shift in steering patterns that reduce cooling rates before the daily minimum is recorded.