**Trader sentiment for Jeddah's June 21 maximum temperature clusters tightly around 35–37°C (implied probabilities 22.5–26%), reflecting short-range forecast consensus near the long-term June average of ~36°C.** Coastal moderation from the Red Sea typically produces afternoon sea breezes that limit peaks, while strong June insolation and minimal cloud cover support highs in the mid-30s. The National Center for Meteorology's seasonal outlook indicates temperatures up to 1.5°C above normal across the Makkah region, consistent with recent observed highs of 34–37°C. Small probability spreads among leading outcomes arise from model differences in wind speed, boundary-layer mixing, and any late-day convection, with new daily guidance and ensemble runs expected to narrow the range before resolution.