Forecast models from Taiwan's Central Weather Administration and international agencies indicate a daily minimum temperature in Taipei near 22–23°C on September 22, 2026, under mostly clear to partly cloudy skies with light northeast winds of 5–10 km/h. Clear nocturnal conditions promote radiative cooling, while moderate humidity near 70–85% and an urban heat island effect limit further drops below 21°C. Recent days have shown similar patterns with minima of 21–23°C amid stable high pressure and no significant frontal systems or typhoon influences. Trader consensus around these levels reflects alignment between ensemble forecasts, with minor spreads arising from model differences in boundary-layer mixing and exact timing of the overnight low. Updated observations from official stations will resolve the market as the day concludes.