Recent forecasts from the Korea Meteorological Administration and global models indicate a high near 24–25°C in Busan on October 1 under mostly clear to partly cloudy skies with northwest winds of 7–10 mph. This consensus, aligned with seasonal norms of 21–24°C, supports the market's heaviest trading around 25°C (33.5%) and 24°C (22.5%). Key variables include the strength of the subtropical high steering drier air, daytime solar heating under limited cloud cover, and any last-minute shifts in boundary-layer moisture or wind direction that could add or subtract 1–2°C. Final KMA updates and morning observations on October 1 will resolve the exact maximum before market settlement.