Jeddah's coastal Red Sea location typically produces August nighttime lows near 28–30°C due to high humidity and marine moderation that limits radiative cooling. Current seasonal outlooks from Saudi meteorology agencies indicate temperatures running 1–1.6°C above the long-term average, keeping daily minima firmly in the 28–31°C range with limited day-to-day variability from stable subtropical high pressure. Model consensus shows little potential for stronger onshore winds or rare cloud cover that could push the lowest reading below 27°C or above 32°C on August 21, explaining the tight clustering of market-implied probabilities around those central outcomes.