Recent forecast model runs indicate persistent monsoon moisture and thunderstorm activity will moderate temperatures on August 28, driving trader focus on the 29–30 °C range where probabilities cluster tightly. Coastal Busan’s marine influence from the Sea of Japan, combined with expected cloud cover and scattered showers, typically limits daytime maxima below recent heat-wave peaks near 34 °C. Historical late-August averages hover around 29–30 °C, with high humidity and variable steering patterns creating modest uncertainty in the precise peak; updated runs from agencies such as the Korea Meteorological Administration will refine timing of any clearing that could allow a brief push toward 31 °C.