Recent forecasts for Busan indicate a high near 31°C on August 9, with overcast skies and isolated late thunderstorms expected, which could limit peak heating through reduced solar insolation and evaporative cooling. Persistent influence from the North Pacific high maintains warm, humid southerly flow typical of midsummer, supporting 30–32°C readings consistent with climatological averages around 30–31°C. Minor model variations in convection timing or sea-breeze strength create uncertainty between 31°C and 32°C outcomes, reflected in closely matched market-implied odds. Updated guidance from agencies like KMA or NOAA analogs in coming hours could shift sentiment if clearer conditions emerge.