Trader consensus around 36–37°C for Guangzhou’s August 6 peak reflects typical late-summer subtropical conditions under the western Pacific subtropical high, where daytime insolation and urban heat-island effects routinely push afternoon readings into the mid-30s. Short-range model guidance shows modest spread driven by uncertainty in low-level moisture and cloud cover associated with the East Asian monsoon trough; clearer, drier air would favor 37°C or higher, while increased humidity or scattered convection would cap values near 36°C. Historical August maxima average 33–34°C, so the elevated market-implied odds hinge on the current warm anomaly persisting through the two-day forecast window. Updated runs from agencies such as the China Meteorological Administration will refine boundary-layer temperature and dew-point forecasts ahead of resolution.