Recent forecasts for Jeddah on July 13 place daily maximum temperatures in the mid-to-upper 30s °C, aligning with the city’s July climatology of roughly 36–38 °C. Coastal sea-breeze moderation, Red Sea humidity, and subtle differences in steering winds create the tight spread across model runs, keeping 36 °C, 37 °C, and 38 °C-or-higher outcomes closely bunched in trader pricing. Short-range model updates and any late adjustments to wind or cloud cover could shift the peak by 1–2 °C, sustaining the balanced market-implied probabilities until final observations are recorded.