**Trader consensus has converged on a 35°C high for Jeddah on October 5, 2026, reflecting real-time surface observations and model consensus from regional meteorological data.** Early October marks the transition from peak summer heat in Jeddah’s arid Red Sea coastal climate, where typical daily maxima range 33–36°C under clear skies and light westerly winds. Multiple forecast runs and station reports show afternoon temperatures peaking near 35°C, with dew points around 25°C and minimal cloud cover supporting efficient daytime heating. This alignment produces the near-certain market-implied probability. Minor deviations remain possible if station-specific siting differences, brief wind shifts, or final observational adjustments alter the official daily maximum by 1°C, though current conditions make such shifts unlikely before resolution.