KTO's 2026 outlook puts Hallasan's first foliage around October 31 and peak around November 13. Check altitude-specific conditions, weather closures and any route reservation rules.
Use KTO's September 8, 2026 forecast to plan a fall trip while distinguishing predictions from current conditions.
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KTO's 2026 outlook puts Hallasan's first foliage around October 31 and peak around November 13. Check altitude-specific conditions, weather closures and any route reservation rules.
Forecast dates are not observed foliage conditions. Check weather, site operations and reservations before travel.
2026 foliage dates are forecasts; live color, weather, transport and operations remain unverified.
