Recent forecasts from the Central Weather Administration and international models indicate Taipei’s minimum temperature on September 22 will likely fall in the 22–23 °C range, driven by moderate northeast monsoon flow, partly cloudy skies, and light to moderate winds that limit nocturnal radiative cooling. Dew points near 20–21 °C and humidity above 80 % at night further moderate temperature drops, while the absence of significant frontal systems or typhoon influences keeps variability low. Trader sentiment remains dispersed across 19–27 °C outcomes because small differences in cloud cover, wind speed, or model bias in boundary-layer mixing can shift the exact minimum by 1–2 °C. Upcoming model runs and evening observations will provide the clearest updates before resolution.