Trader consensus centers on a 36°C daily maximum in Jeddah, driven by consistent observational data and forecast models showing peak readings near that threshold under mostly clear skies and light westerly winds along the Red Sea coast. Late-September climatology features high humidity and stable high-pressure patterns that limit cloud development and support afternoon heating to seasonal norms around 34–36°C, with recent model runs aligning closely on this outcome. Official measurements from stations such as King Abdulaziz International Airport provide the resolution benchmark, incorporating standard thermometer protocols. Minor deviations could arise from localized sea-breeze effects or minor convective activity altering the exact hourly peak, though current conditions make substantial shifts unlikely.