Gwanaksan Mountain

Steep Seoul-area mountain popular for hiking and temples

Gwanaksan rises south of Seoul with granite crags, forested trails and temple sites. Hikers come for steep routes, exposed rock sections, city vistas from the summit and nearby university campuses that skirt the mountain.

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2012년 1월 28일 강남소방서 안전기원 지신밟기 관악산 등산-P1020377.JPG
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Gwanaksan at a Glance#

Address: Gwanaksan mountain trails, southern Seoul (approaches from Seoul National University and surrounding neighbourhoods)

About Gwanaksan#

Gwanaksan is a mountain on the southern edge of Seoul and extending into Gyeonggi Province, with a summit elevation of about 632 metres. It is a prominent urban mountain known for hiking and rock outcrops.

The mountain has multiple well-used hiking trails of varying difficulty, rock-climbing sections and several viewpoints that look over Seoul and surrounding suburbs. Trailheads are accessible from districts of southern Seoul and adjacent cities, making it a popular city-adjacent outdoor destination.

Gwanaksan has long been part of the regional landscape and contains historic mountain routes and small hermitages; it now functions primarily as a public recreation and hiking area. Trails and access points were developed to accommodate the large numbers of daily hikers.

The mountain sits on the border of southern Seoul and Gyeonggi Province, south of central Seoul and near the campuses and suburbs on the city’s southern perimeter.

  • Elevation and access: Summit elevation approximately 632 metres and multiple trailheads, including routes near Seoul National University.

How to Get to Gwanaksan#

Multiple trailheads: common access from Seoul National University (SNU) or the Gwanak-gu neighbourhood. Use Seoul metro to stations near SNU (Line 2) and walk or take a short local bus/taxi to trailheads.

Tips for Visiting Gwanaksan#

  • Popular routes up Gwanaksan start from Seoul National University - arrive early to secure a parking spot and enjoy cooler temperatures.
  • The summit reward includes the small Buddhist shrines and a dramatic view of southern Seoul; bring a headlamp if descending after dusk.
  • Some sections involve steep rock scrambles; those with limited experience should use the easier trails and avoid the exposed ridgelines.

Best Time to Visit Gwanaksan#

Spring and autumn are best for temperate, clear hiking conditions; avoid summer monsoon days and icy winter trails without equipment.

Spring
March-May · 8-20°C (46-68°F)
Blossoming and pleasant hiking weather; popular with local walkers.
Autumn
September-November · 10-20°C (50-68°F)
Clear days with good visibility and brilliant foliage - peak season for hikers.
Winter
December-February · -5-5°C (23-41°F)
Cold and possibly icy; take crampons for steeper sections.

Weather & Climate near Gwanaksan#

Climate

Gwanaksan's climate is classified as Hot-Summer Continental (Dry Winter) - Hot-Summer Continental (Dry Winter) climate with warm summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -10°C to 27°C. Abundant rainfall (1341 mm/year), wettest in July with a pronounced dry season.

Air Quality: AQI 80 Moderate
Best Time to Visit
SeptemberOctoberJune
Temperature & Rainfall
Temperature Range
35°
Warmest Month
-21°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -10° - -1° -10° 20 mm partly cloudy 77% 3.3 m/s 0.3 low 9.8h
February Acceptable -7° - 2° -7° 27 mm partly cloudy 74% 3.1 m/s 0.4 low 10.7h
March Acceptable -2° - 8° -1° 48 mm partly cloudy 74% 3.4 m/s 0.7 moderate 11.8h
April Very Good 4° - 15° 8° 86 mm partly cloudy 74% 3.4 m/s 1.1 high 13.0h
May Good 10° - 20° 15° 100 mm partly cloudy 75% 2.8 m/s 1.4 high 14.0h
June Very Good 15° - 24° 20° 144 mm partly cloudy 77% 2.4 m/s 1.3 high 14.5h
July Good 19° - 26° 23° 344 mm overcast 84% 2.5 m/s 1.3 high 14.3h
August Good 19° - 27° 23° 299 mm partly cloudy 83% 2.5 m/s 1.4 high 13.4h
September Very Good 14° - 23° 18° 149 mm partly cloudy 79% 2.4 m/s 1.1 high 12.3h
October Very Good 6° - 17° 12° 51 mm some cloud 75% 2.4 m/s 0.7 moderate 11.1h
November Good 0° - 9° 2° 49 mm partly cloudy 75% 2.8 m/s 0.4 low 10.0h
December Acceptable -7° - 2° -6° 24 mm partly cloudy 76% 3.0 m/s 0.2 low 9.5h

Nearby Attractions to Gwanaksan#