Recent forecasts from Taiwan's Central Weather Administration and global models indicate a high near 29–31°C for Taipei on September 22 under partly cloudy skies with northeasterly flow and minimal rain chance, consistent with late-summer subtropical conditions before stronger monsoon cooling sets in. Trader emphasis on 31–32°C reflects slight upward bias from ensemble runs showing potential afternoon peaks near 30–31°C amid low humidity and light winds, while lower outcomes like 30°C capture downside risks from earlier cloud cover or measurement timing at official stations. Historical September averages hover around 30–31°C, and the absence of typhoon or frontal systems keeps probabilities clustered in this narrow range ahead of final model updates.