**Current ensemble forecasts from agencies like the China Meteorological Administration and global models indicate a most likely minimum temperature near 18–20°C for Qingdao on September 11, 2026, consistent with early-autumn maritime moderation along the Yellow Sea coast.** Historical September averages place the typical daily low around 19°C, with coastal sea-surface temperatures near 24–25°C helping suppress sharp nocturnal cooling. The closely matched market-implied odds—42% for 12°C or below versus 41.5% for 22°C or higher—reflect genuine short-range forecast uncertainty rather than a strong directional signal. Key differentiating factors include variable low-level wind direction (northeasterly versus southeasterly flow), potential for marine-layer stratus or clear-sky radiational cooling, and modest model spread in 850 hPa temperatures and boundary-layer moisture. Recent runs show limited large-scale forcing, with no active fronts or typhoon influences expected to shift the pattern dramatically before resolution. Traders appear to be pricing in tail risks from model divergence on overnight minimums, while the narrower probabilities around 13–21°C capture the narrower envelope of the consensus solution. The official daily minimum observation, typically recorded at a standard station under WMO guidelines, will determine the outcome once data are finalized.