Official forecasts from the Korea Meteorological Administration and supporting global models indicate Seoul will experience a minimum temperature of 19°C on June 16, 2026, under stable early-summer conditions with clear to partly cloudy skies and light winds that limit nocturnal radiative cooling. This aligns with typical mid-June climatology for the region, where average overnight lows range from 16–19°C absent strong frontal systems or heavy rainfall. Trader consensus reflects high confidence in these model runs, as no significant atmospheric shifts—such as a cooler air mass intrusion or enhanced cloud cover—have emerged in recent updates. The outcome could shift only if late-day observations reveal unexpected cooling from localized showers or revised station data falling to 18°C or below.