Recent model consensus from sources like the China Meteorological Administration and international ensembles points to a humid subtropical airmass over Guangzhou with daytime highs likely peaking in the mid-30s Celsius on August 15, driven by persistent southerly flow and high dew points near 26–28°C. Scattered afternoon thunderstorms expected from diurnal heating and monsoon moisture could limit insolation and cap the maximum, creating the tight clustering around 34–36°C outcomes. Historical August climatology shows average highs near 33–34°C, but interannual variability and urban heat effects in the Pearl River Delta allow occasional spikes to 36°C or higher when convection is suppressed. Forecast uncertainty remains elevated two days out due to timing of any rain bands and cloud cover, which directly influences whether the daily peak crosses the 35°C threshold.