š Korea Fall Foliage 2026: When and Where the Leaves Peak
October is when Korea looks its best. The mountains turn red, orange and gold from north to south, palace courtyards fill with yellow ginkgo, and every weekend train out of Seoul is booked with hikers. The catch: peak color only lasts a week or two in any one place, and it moves. Hereās the official 2026 forecast, what the dates actually mean, and where to go in each region. š
The 2026 Forecast at a Glance
Koreaās first foliage of 2026 appeared on September 14 at the Jombongsan Forest Genetic Resources Reserve in Inje, Gangwon. According to the Korea Forest Service, color spreads through the northern Gangwon mountains in early October and peaks nationwide in late October, about a day later than the five-year average.
| Mountain (region) | Forecast peak |
|---|---|
| Seoraksan (Gangwon) | October 20 |
| Songnisan (Chungcheong) | October 28 |
| Naejangsan (Jeolla) | November 4 |
| Hallasan (Jeju) | November 6 |
The Forest Service also forecasts by tree type: ginkgo peaks around October 30, and maple and oak around October 31. Ginkgo is the one youāll see in the city, lining streets and palace grounds in bright yellow.
Private forecaster K-Weather gives a wider regional window:
| Region | First color | Peak |
|---|---|---|
| Central Korea (Seoul, Gyeonggi, Gangwon, Chungcheong) | Sep 30 ā Oct 18 | Oct 19 ā Nov 1 |
| Southern Korea (Gyeongsang, Jeolla, south coast) | Oct 19 ā Oct 27 | Nov 1 ā Nov 11 |
How to Read a Foliage Forecast
- āFirst colorā means about 20% of a mountain has turned, starting from the summit. It looks patchy, not postcard-perfect.
- āPeakā means about 80% has turned. This is the date to plan around.
- Color moves south and downhill, roughly 20ā25 km a day. High mountains in Gangwon turn first, Jeju and the southwest last.
- Leaves change over days, not in one day. Treat the peak as the middle of a one-to-two-week window, not a single date.
ā” Quick Tip: Plan around the week, not the day
Pick the week around the forecast peak and keep a day or two of flexibility. Famous spots get very crowded on peak weekends, so go on a weekday, arrive early in the morning, and use the train or intercity bus instead of driving into mountain parking lots.
Where to See It, Region by Region
Gangwon: first and most dramatic (mid to late October)
Seoraksan is Koreaās classic foliage mountain and the first to peak. Its rocky ridges with red and gold slopes are worth the trip, but expect long lines on weekends. For a very different autumn look nearby, the silver grass on Mindungsan in Jeongseon peaks in mid-October.
Seoul and nearby: late October to early November
You donāt have to leave the city. Gyeongbokgung Palace, Seoul Forest, Olympic Park and the Namsan area all turn gold with ginkgo and red with maples. Just outside Seoul, Hwadam Botanic Garden (timed tickets, book ahead), Nami Island and The Garden of Morning Calm are easy day trips.
Chungcheong and Gyeongsang: late October
Songnisan in Chungcheong peaks around October 28. In Gyeongsang, Bulguksa Temple in Gyeongju and the Gayasan and Jirisan areas turn in late October to early November. Both are doable as day trips from Seoul by KTX or intercity bus.
Jeolla: the maple finale (early November)
Naejangsan is the most famous maple mountain in Korea, with a tunnel of deep red leaves near Naejangsa Temple around November 4. Nearby Baegyangsa Temple in Jangseong is quieter and just as beautiful.
Jeju: the last stop (early November)
Hallasan is the last major mountain to peak, around November 6, so itās a good backup if you missed the mainland.
K Local Tip
The photos in this guide are from my own walks last autumn. What surprised me most after years abroad: some of the best color is in small city parks and temple grounds, not just the famous mountains. If a weekend is fully booked, a weekday morning in a local park or palace can be just as beautiful, and far calmer.
Planning around festivals too? See our fall festivals guide and Seoulās neighborhood festivals.
Forecast dates are from the Korea Forest Service (September 22, 2026) and K-Weather (September 2026). Actual timing can shift with temperature and rainfall, so check again a week before you go.
