Recent forecasts from multiple models indicate a likely daily maximum of 30–32°C for Guangzhou on September 2, shaped by persistent northerly flow, widespread cloud cover, and scattered showers that limit daytime heating. Current conditions feature high humidity near 70–90% and moderate winds that enhance mixing and suppress peaks, aligning with the market’s tight clustering around 29–31°C. Historical early-September averages near 32–33°C provide context, yet the short-term outlook shows modest cooling from transient moisture and reduced insolation. Updated model runs and official agency briefings on steering patterns and precipitation timing remain the key variables that could shift the exact observed high within this narrow range.