Recent forecasts from multiple models point to a minimum temperature near 22–23°C in Taipei on September 22, driven by moderate northeast monsoon flow and clear to partly cloudy skies that promote nighttime radiative cooling under typical early-autumn humidity levels around 70–80%. Stable high pressure and light winds (generally 5–10 mph from the northeast) limit mixing, allowing the overnight low to settle in this narrow range, consistent with September climatology showing gradual cooling from summer peaks. Trader sentiment remains dispersed because small differences in model wind speeds, dew points, or urban heat-island effects could shift the exact minimum by 1–2°C, with the tight clustering around 19–24°C reflecting genuine forecast uncertainty just 48 hours ahead. Updated model runs and official Central Weather Administration guidance on wind and cloud trends will likely refine probabilities before resolution.