Recent meteorological model consensus from agencies monitoring East Asian weather patterns shows a stable subtropical high-pressure system dominating southern China, limiting overnight radiative cooling amid elevated humidity levels above 70% and light southerly winds. This setup supports minimum temperatures in Shenzhen on September 28 clustering near 27–29°C, aligning with the market's leading implied probability for 29°C. Historical September climatology for the region, with average lows around 24–26°C, underscores the current warmth as an anomaly driven by absent cold fronts. Forecasters note potential model divergence on cloud cover, which could allow slightly greater cooling and shift probabilities toward 28°C or lower if observed data confirm clearer skies overnight.