**Forecast models indicate a minimum temperature for Shenzhen on September 4, 2026, centered in the mid-20s°C, driven by persistent cloud cover, light rain or thunderstorms, and high humidity that limits nocturnal radiative cooling.** Subtropical conditions in early September typically feature overnight lows near 24–26°C when daytime highs reach 28–30°C under northwest winds and elevated dew points around 22–24°C. Multiple sources, including hourly guidance showing temperatures holding above 24°C through the night, support this range, with precipitation (0–40% chance) acting as the key moderator preventing sharper drops. Trader consensus clusters tightly around 24–26°C because small shifts in rain timing or cloud thickness—common uncertainties in short-range forecasts—can easily move the exact minimum by 1–2°C. New model runs from agencies like the China Meteorological Administration will refine these probabilities as the date approaches.