Korea Meteorological Administration (KMA) short-term forecasts, updated as of May 1, 2026, project Seoul's lowest temperature at 12°C during the early morning hours around 6 a.m., under clear skies with light southerly winds and minimal cloud cover limiting radiative cooling. This aligns with hourly model outputs showing temperatures bottoming at 12°C before rising to a high near 24°C, reflecting stable high-pressure influence and recent cooler trends from prior light rain episodes. Trader consensus at 94% implied probability on 12°C captures this authoritative guidance, backed by consistent ensemble model agreement. Realistic challenges include unexpected northerly cold air advection or prolonged clear skies overnight enhancing cooling to 11°C or below, though current observations show little deviation; monitor KMA updates through evening for final resolution based on official station measurements at Seoul observatories.