Above-normal seasonal temperatures across Saudi Arabia, as projected by the National Center for Meteorology for August 2026, form the main driver behind the market-implied odds favoring 40–41°C or higher for Jeddah’s peak reading on August 12. Typical Red Sea coastal conditions—high solar insolation, light northerly winds, stable high pressure, and humidity that slightly moderates extremes relative to inland sites—align with historical August averages near 37–38°C while supporting modest upward shifts under the current climate outlook. Recent early-August observations of 35–39°C highs, absent major dust events or stronger sea breezes, reinforce trader consensus around these levels. Short-term model guidance from sources such as the Met Office and timeanddate.com shows little day-to-day variability expected through the period, with resolution hinging on the official maximum reported for the date.