Recent Korea Meteorological Administration forecasts indicate a daytime high of 34°C for the Seoul-Incheon area on August 12 under mostly clear to partly cloudy skies and minimal precipitation risk, following the early-August heatwave that produced national records above 42°C and Seoul peaks near 39°C. Persistent high pressure supports subsidence warming, yet Incheon’s coastal location introduces marine moderation and potential afternoon cloud development that can cap afternoon maxima. Model consensus and recent cooling trends have shifted trader focus toward the 32–33°C bins, reflecting uncertainty around exact timing of peak heating, boundary-layer mixing, and any subtle steering changes that could trim 1–2°C from the official outlook. Updated KMA guidance and station observations remain the key near-term catalysts.