Recent forecast models from multiple sources point to a September 15 high near 30–31°C in Shenzhen, with scattered thunderstorms and variable cloud cover expected to moderate daytime heating. Elevated humidity and northeast winds around 3 m/s favor convective development that can reduce solar insolation and cap temperature peaks, while clearer intervals might allow brief spikes toward 32°C. Model consensus remains tight because steering patterns and moisture convergence create only modest day-to-day variability this close to the event. Updated runs from agencies such as the China Meteorological Administration or regional numerical weather prediction outputs arriving overnight will likely refine the timing and intensity of any showers, directly influencing whether the daily maximum settles at the lower or upper end of the narrow 30–32°C range implied by current trader positioning.