Official forecasts from the Korea Meteorological Administration show Busan under clear to partly cloudy conditions on August 12 with southerly flow and high humidity supporting a daytime maximum near 31–33 °C, consistent with regional heat-wave advisories and August climatology of 29–31 °C highs. Market-implied odds reflect this consensus from ensemble model runs and real-time surface observations, which place the peak squarely in the 31 °C bracket with minimal dispersion. Uncertainties remain from potential afternoon convection or slight steering-pattern shifts that could suppress the high by 1–2 °C, while stronger subsidence or delayed sea-breeze effects could push readings above the bracket; updated model guidance and official station reports will determine final resolution.