**Recent model guidance from the Hong Kong Observatory and global ensembles points to a modest cooling influence from increased cloud cover and scattered showers expected around July 31, keeping daytime maxima near or slightly below the July climatological average of ~31–32 °C.** Persistent moisture from the summer monsoon trough and possible residual effects from earlier tropical systems limit surface heating and reduce the diurnal temperature range, favoring outcomes clustered around 28–30 °C. Traders assign the highest implied probability to 29 °C because numerical guidance shows the greatest consistency in that narrow band, while single-degree resolution remains sensitive to small shifts in timing of convection or wind direction. With the market tightly bunched between 28 °C and 30 °C, uncertainty centers on whether skies clear enough for brief solar heating spikes or whether rain arrives early enough to cap the peak.