**Trader consensus centers on 30–31°C highs for Shenzhen on September 5, reflecting short-range model guidance showing a warm, humid subtropical air mass over the Pearl River Delta with modest daytime heating potential.** Recent forecasts from multiple sources consistently indicate afternoon highs near 30°C amid scattered thunderstorms or convective showers, which can limit peak temperatures through cloud cover and evaporative cooling. Historical September averages near 31°C provide context, but current patterns—residual moisture from recent tropical activity and a monsoon-influenced trough—introduce uncertainty in exact maxima. Afternoon convection timing is the key variable: earlier or stronger storms favor the lower end of the range, while clearer intervals allow brief warming toward 31°C or slightly above. Updated model runs and official briefings from the China Meteorological Administration in the next 24–48 hours will likely refine these probabilities as the event approaches.