Recent forecasts from regional meteorological models indicate peak daytime heating in Taipei on May 19 will likely reach 30–32°C, with traders assigning roughly equal weight to these outcomes due to uncertainty in cloud cover and precipitation timing. As the East Asian monsoon trough strengthens, increased moisture and scattered showers can suppress maximum temperatures by 1–2°C through evaporative cooling and reduced solar insolation. Conversely, brief periods of clearer skies under southerly flow may allow surface temperatures to climb toward 32°C before convective development. Historical May averages for Taipei hover near 29°C, with high humidity (75–85%) and typical diurnal ranges of 6–8°C, making small shifts in frontal timing or thunderstorm onset the key variables that could tip the recorded high between the closely matched 30°C and 32°C thresholds. Updated model runs later this week will likely refine these probabilities.