**Forecast models from sources like Weather15, The Weather Network, and others converge on a nighttime minimum near 26–28°C for Shenzhen on August 29, 2026, aligning with the market’s leading 27°C outcome at 52% implied probability.** High humidity levels (often 85–93%), persistent cloud cover, and scattered rain or thunderstorms limit radiative cooling overnight, keeping temperatures from dropping as sharply as they might under clear, dry conditions typical of the region’s subtropical monsoon climate. Recent heavy rainfall and southerly flow have maintained a warm, moist air mass, with dew points near 26°C further supporting elevated minimums. Historical August averages for Shenzhen lows hover around 25°C, but the current pattern of frequent convection and reduced diurnal temperature ranges favors the 26–28°C cluster (evident in the 39–52% probabilities for 26°C, 27°C, and 28°C). Outliers like 22°C or below (39.5%) or 32°C+ (0.6%) reflect low likelihood under these stable atmospheric conditions, though updated model runs or sudden clearing could introduce minor shifts before resolution.