Traders assign the highest implied probability to a 32°C peak in Guangzhou on June 14 because seasonal climatology and ensemble forecasts place the daily maximum near that threshold amid subtropical monsoon conditions. June typically brings average highs of 31–32°C with high humidity and frequent afternoon convection; current model guidance from regional agencies shows partly to mostly cloudy skies with scattered thunderstorms that limit daytime heating but still allow brief periods of stronger insolation to reach 31–32°C. Lower odds on 33°C or higher reflect the cooling effect of expected rainfall and cloud cover, while probabilities collapse below 30°C given the absence of any strong cold-air intrusion or prolonged overcast. Updated short-range model runs and official maximum-temperature observations released later today will determine final settlement.