Persistent monsoon influences and a nearby low-pressure system are sustaining high humidity and widespread cloud cover over northern Taiwan, limiting radiative cooling and anchoring overnight lows near 25–27 °C for August 22. Official guidance from the Central Weather Administration and ensemble forecasts from ECMWF and GFS show minimum temperatures in this narrow band, with only modest model spread driven by small differences in timing of showers and wind direction. Historical climatology for mid-August places typical minima around 26 °C, so current conditions align closely with the seasonal norm rather than signaling a notable departure. Traders appear to be pricing in this consensus while leaving room for last-minute forecast revisions before the daily minimum is recorded.