Recent forecasts from the Korea Meteorological Administration and international models indicate Busan will see clearing skies on October 5 after overnight and morning showers, with northwesterly winds of 10–15 km/h advecting cooler air behind a frontal system. This setup supports a daytime high near 23–24°C under mostly sunny conditions, consistent with late-September to early-October climatology for the coastal city where marine moderation limits extremes. Observed warmth on October 4 reached 24–26°C amid lingering moisture, yet the post-frontal environment and model consensus favor values clustered around 24°C rather than the market’s leading 25°C outcome. Updated KMA guidance and afternoon observations will refine resolution thresholds ahead of market close.