Recent frontal rainfall across the Seoul metropolitan area, with Korea Meteorological Administration estimates of 5–50 mm from the October 12–13 system, has anchored trader consensus near the 50–70 mm bin, close to the long-term October average of roughly 50–65 mm. Variable steering of subsequent cold fronts and potential late-month showers introduce the observed spread, with higher bins priced for possible additional convective activity under lingering warm, humid air before seasonal cooling strengthens. Model consensus remains uncertain beyond the next 7–10 days, and traders will monitor updated KMA and ensemble guidance on total monthly accumulation through the end of October.