Recent short-range guidance from the Korea Meteorological Administration and global models points to a modest easing of the southeastern heatwave by August 10, with daytime maxima in Busan most likely clustering near 29–31 °C amid increased cloud cover, scattered showers, and stronger southerly maritime flow. The North Pacific High continues to dominate but is expected to allow greater moisture advection and localized convection that limits peak insolation, while Busan’s coastal location adds a moderating sea-breeze effect. Historical August climatology shows typical highs of 29–31 °C, yet the current setup features higher uncertainty from divergent model solutions on timing of any rainfall. Traders therefore assign the closest probabilities to 29–31 °C outcomes, reflecting both the forecast consensus and the narrow margin between these thresholds.