Jeddah's Red Sea coastal location sustains elevated temperatures in mid-August through intense solar insolation, high humidity, and limited nocturnal cooling under subtropical high pressure. With the current date just two days before the target, short-range models from agencies like the Saudi Meteorological Authority and global ensembles indicate daytime maxima near 39°C, consistent with August climatology of 38–40°C highs and occasional peaks above 41°C during clear, low-wind periods. Trader emphasis on the 41°C-or-higher outcome reflects uncertainty in urban heat-island amplification and potential model underestimation of boundary-layer warmth, while lower bins remain discounted absent any cooling advection or increased cloud cover in the latest runs. Resolution will hinge on the official daily maximum recorded at the primary Jeddah station.