Forecast models from sources including the National Center for Meteorology indicate stable high-pressure conditions over the Red Sea coast, with light northwest winds and clear to partly cloudy skies expected through September 2. These factors typically produce overnight radiative cooling limited by high humidity and the moderating influence of sea-surface temperatures near 30–32°C. Recent runs project minimum temperatures of 29–31°C, aligning closely with the 1991–2020 September climatological average low of approximately 28–30°C for Jeddah. With resolution hinging on the precise overnight minimum, traders weigh minor model spread in boundary-layer moisture and wind speed, which can shift readings by 1–2°C. Updated short-range guidance remains the key upcoming input before market close.