Recent forecasts from sources including WeatherBug and Chinese meteorological services indicate Guangzhou's October 9 overnight low will likely settle near 19–21°C under mostly clear to partly cloudy skies and light northeasterly flow. This follows early-October cold air surges that briefly dropped readings into the upper teens, with radiative cooling under high pressure now competing against gradual warming and moderating humidity. Historical October 9 lows average 21.8°C with a record of 16°C, so trader splits between sub-16°C and 26°C+ outcomes reflect uncertainty in exact nocturnal cooling rates versus any late cloud or wind shifts. Local CMA updates and model consensus through the next 48 hours will be the key near-term drivers.