Latest numerical weather prediction models from sources like the Met Office and ECMWF indicate peak temperatures in Jeddah on September 19 likely ranging from 36–38°C under persistent high pressure, clear skies, and light westerly winds typical of the Red Sea coast in mid-September. This aligns with the market's tight clustering around those outcomes, as recent model runs show minor disagreements on exact maxima tied to diurnal heating timing and boundary-layer mixing. Historical September averages near 35–37°C provide context, while the absence of any incoming troughs or increased humidity keeps probabilities for extremes below 34°C or above 39°C very low. Updated high-resolution runs and official Saudi meteorological guidance expected within 24 hours could refine the peak by 1–2°C ahead of resolution.