**Jeddah’s coastal desert climate produces typical late-August daily maximum temperatures of 36–38°C under strong solar heating, clear skies, and light Red Sea breezes that moderate extremes relative to inland sites.** Recent early-August observations reached 43–45°C amid a hotter-than-average spell, yet longer-range guidance from sources such as AccuWeather now points to a moderation toward the monthly mean of roughly 37°C (98–99°F) for the coming days. This shift aligns with the market’s concentration of probability on 37°C (38%) and 38°C (26.5%), while the modest 12.5% on 39°C or higher reflects limited upside potential from any lingering heat. Low precipitation, stable high pressure, and the absence of significant cloud cover or wind changes keep the distribution narrow around these values, with traders weighting official climatological baselines and short-term model consensus for the August 21 resolution window.