Jeddah's mid-May climatology, driven by the region's subtropical desert location and peak solar insolation, routinely produces daytime highs above 37 °C, which underpins the market's near-certain pricing on that outcome. Current National Meteorological Center guidance and ensemble model runs show surface temperatures climbing into the upper 30s to low 40s under clear skies and light northerly flow, consistent with historical May averages near 38 °C. While an atypical marine layer or stronger onshore breeze could briefly cap readings a degree or two lower, the probability of such moderation remains minimal given the established seasonal pattern and absence of disruptive synoptic features in the latest forecasts.