Recent KMA and regional model guidance for coastal Busan point to partly cloudy conditions with moderating sea breezes and possible scattered showers on August 16, keeping maximum temperatures centered in the 26–28°C range that dominates current market-implied odds. These outcomes reflect typical late-summer variability, where daytime heating is tempered by high humidity, variable cloud cover, and onshore flow rather than strong synoptic forcing. Forecast spread arises from differences in how models handle boundary-layer moisture and timing of any weak frontal passages, producing the tight clustering around 27°C and 28°C. Updated short-range runs and hourly observations over the next 48 hours will refine the precise peak, especially if afternoon clearing or additional moisture shifts the thermal profile.