Recent official forecasts from the Korea Meteorological Administration indicate a maximum of 29°C for Busan on August 21 amid increasing cloud cover and a 60% chance of afternoon showers, yet ensemble model spreads and variable rain timing create uncertainty around peak values. Persistent influence from the North Pacific High sustains elevated humidity and warmth typical of late summer, while any extended sunny intervals or delayed precipitation could push readings into the low 30s Celsius. Historical August highs average near 29–30°C with gradual seasonal cooling, but short-term steering patterns and convective development remain the key variables traders are weighing in the tightly bunched 31–33°C outcomes. Updated model runs and KMA briefings over the next 48 hours will likely refine these probabilities.