Recent forecasts from the Korea Meteorological Administration place Busan’s August 21 daytime maximum near 32–33 °C under mostly cloudy skies, light westerly winds, and scattered showers that limit afternoon heating. Busan’s coastal position exposes it to moderating sea breezes from the East Sea, while residual East Asian monsoon moisture sustains high humidity and reduces the diurnal temperature range. Model consensus currently favors a peak just above or at 33 °C, yet minor shifts in cloud timing or wind direction could trim the maximum to 32 °C. With only two days until resolution, updated short-range guidance and any late-arriving precipitation will determine which of these closely matched outcomes prevails.