**Forecast models converge on a daily minimum near 30–31°C for Jeddah on September 2, driven by the stable high-pressure regime and persistent northwest winds over the Red Sea coast.** Early September climatology shows typical overnight lows of 29–31°C, with minimal diurnal cooling due to high humidity (often 45–55%) and warm sea-surface temperatures that limit radiative heat loss. Recent observations confirm no incoming troughs or unusual moisture that would alter this pattern, keeping the market-implied probabilities clustered around 26–34°C outcomes. Traders weigh the narrow range of model guidance against potential micro-scale variations at measurement sites, while noting the low chance of extremes below 28°C or above 33°C given the entrenched warm-air mass and light winds forecast through the night.