Recent model consensus from agencies like the China Meteorological Administration points to a highest temperature of 32–34°C in Guangzhou on August 21 amid typical late-summer subtropical monsoon conditions, with light rain or overcast skies expected to moderate peak heating. High humidity and potential afternoon convection introduce variability in the daily maximum, while the absence of strong typhoon influences or cold fronts keeps temperatures near the August climatological average of 32–33°C. Trader sentiment clusters tightly around these values because short-range forecast uncertainty—driven by timing of showers and boundary-layer moisture—can shift the exact high by 1–2°C, with 34°C holding a modest edge due to recent warmer model runs.