Current forecast models from multiple sources indicate a minimum temperature near 27°C in Guangzhou on September 27, driven by persistent subtropical high pressure, light southerly winds, and limited nocturnal cooling under partly cloudy skies with low precipitation chances. This aligns with typical late-September patterns where overnight lows rarely drop below 24°C absent a strong cold front or heavy rain event, though model runs show minor spread in exact timing of any diurnal variations. Trader consensus remains closely divided between warmer and cooler thresholds because small shifts in humidity, cloud cover, or local urban heat effects could adjust the recorded minimum by 1–2°C, with official observations from the China Meteorological Administration serving as the resolution source.