**Trader consensus on 26°C for Busan's October 13 high reflects Korea Meteorological Administration forecasts and observations of daytime maxima reaching the mid-20s under clearing skies after morning rain.** National guidance projected 19–26°C highs as a trough and northwest cold air advection ended precipitation by afternoon in the Busan region, with local models and surface data confirming peaks near 25–26°C amid moderate southwest to northwest winds and humidity dropping through the day. This aligns with historical October patterns for the area before sharper cooling sets in overnight. The outcome could shift only if final KMA station readings record a different peak due to localized effects or timing of the last showers, though current data make such revisions unlikely.