Recent official forecasts from the Korea Meteorological Administration and global models indicate a daytime high in Busan around 31–33 °C for August 19 under mostly cloudy conditions with light southwesterly winds and moderate humidity. This aligns with typical mid-August climatology, where average highs reach 30–31 °C amid persistent summer warmth and occasional tropical moisture. The 32 °C outcome leads market-implied odds because ensemble guidance clusters near that value, while slight model spread in cloud cover and timing of any showers creates room for 31 °C or 33 °C resolution. No major typhoon or heat-wave anomaly has emerged in the past 48 hours to shift the baseline, keeping probabilities concentrated in this narrow band ahead of final model runs.