Recent forecasts from agencies like the China Meteorological Administration and international models indicate a minimum temperature near 23–24°C for Shenzhen on September 14, driven by persistent cloud cover, scattered showers, and moderate northeasterly flow that limits nighttime radiative cooling in the subtropical environment. Trader emphasis on the 21°C-or-below outcome at 39% implied probability reflects uncertainty around potential breaks in cloudiness or stronger advection of cooler air from northern systems, which could enhance surface cooling beyond typical late-summer baselines of 24–25°C. Ongoing monsoon influences and model spread in precipitation timing keep the 25°C and 26°C bins competitive, while warmer outcomes above 30°C remain discounted given the saturated boundary layer and expected 1–10 mm rainfall that moderates the diurnal range. Updated model runs and overnight observations ahead of the date will likely refine these probabilities.