Forecast uncertainty around Chongqing’s peak temperature on August 29 centers on variable subtropical high pressure and moisture transport from the East Asian monsoon, with numerical weather models showing a narrow spread that supports trader clustering near 29–31 °C. Local basin topography traps heat and humidity, while afternoon convective clouds or scattered showers could cap daytime maxima by 1–2 °C; conversely, clearer skies and lighter winds would allow stronger solar heating and push readings toward 32 °C. Recent model runs exhibit typical divergence in boundary-layer moisture and timing of any sea-breeze influence, keeping implied probabilities tightly bunched. Official China Meteorological Administration guidance and ensemble guidance issued within the past 24 hours will provide the final resolution data.