Recent forecasts from major models indicate Jeddah's July 31 maximum will likely peak near 39–40 °C under persistent subtropical high pressure, abundant solar heating, and light winds typical of the Red Sea coastal regime. The sea’s moderating influence and possible afternoon sea-breeze timing introduce small uncertainties that separate the closely matched 39 °C, 40 °C, and 41 °C outcomes in trader pricing. Historical July averages hover around 39 °C with occasional 41–42 °C spikes when onshore flow weakens; current guidance shows no strong anomalies that would push probabilities decisively higher or lower. Updated model runs and official Saudi meteorological briefings over the next 48 hours remain the key data points traders are watching.