Persistent low-pressure systems and strengthening southwesterly flow, remnants of tropical depression TD20 (formerly Typhoon Saudel), have driven widespread cloud cover and showers across Taiwan into early September, moderating daytime heating in Taipei. Official Central Weather Administration guidance and ensemble forecasts indicate partly cloudy conditions on September 2 with 60% storm chances and highs near 32–33°C, though clearing skies in some model runs could allow peaks to 34–35°C under subtropical insolation. Historical September maxima average 30–32°C, with rain-cooled surfaces and high humidity (70–90%) suppressing extremes below 36°C. Trader consensus around 33–35°C reflects uncertainty in the timing of any low-pressure dissipation before peak afternoon temperatures, with upcoming CWA updates and model runs likely to refine these market-implied odds.