The near-certain market consensus on a 29°C high for Busan on June 16 stems from real-time observations and official Korean Meteorological Administration data confirming daytime maxima reached that threshold under partly cloudy skies, light easterly winds, and moderate humidity typical of early summer marine influence. Coastal sea surface temperatures around 20–22°C and regional pressure patterns have supported gradual warming without significant cloud cover or precipitation to suppress readings, aligning with climatological baselines where mid-June highs in Busan average 24–27°C but can spike with clear subtropical air advection. Minor probabilities on adjacent bins reflect residual uncertainty in final hourly verification or station-specific microclimates. A sudden late-day sea breeze surge or measurement revision below 29°C remains the only realistic scenario that could alter resolution, though current model consensus and live station reports make this highly improbable.