Mount Twynam Mountain

Snowy Mountains peak, popular with hikers

An alpine peak in the Snowy Mountains, Mount Twynam lies on the Main Range and draws hikers on multi-day routes and cross-country skiers across its high plateaus.

Main image

Mount Twynam at a Glance#

Address: Kosciuszko National Park, New South Wales, Australia

Website: https://www.nationalparks.nsw.gov.au/parks/kosciuszko-national-park

Hours: Open year-round (access depends on weather)

Admission: Free (Kosciuszko National Park entry free; fees may apply for some facilities)

About Mount Twynam#

Mount Twynam is a high peak in the Snowy Mountains of New South Wales, reaching about 2,195 meters and ranking among the tallest summits on the Australian mainland. It forms part of the Main Range within Kosciuszko National Park.

The summit is broad and sits on alpine plateau country that is popular with walkers and peak-baggers following the Main Range and High Plains routes. From the top there are extensive views across the Snowy Mountains and toward nearby high peaks.

The peak has long been part of the high-country landscape used for grazing, exploration, and recreation and is included within Kosciuszko National Park for conservation and public access. It is a regular objective for day and multi-day hikes in the park.

Located in southeastern New South Wales within Kosciuszko National Park, Mount Twynam lies on the Main Range near other high points such as Mount Kosciuszko and is accessible from the park’s trail network.

  • Elevation: Rises to 2,195 meters, making it one of the highest peaks on the Australian mainland and a prominent point on the Main Range walking route.

How to Get to Mount Twynam#

Mount Twynam sits inside Kosciuszko National Park, New South Wales. Common approaches are from Thredbo village (drive ~2.5 hours from Canberra or ~5 hours from Sydney) via the Thredbo Valley and the Ramshead tracks, or from Dead Horse Gap (near Charlottes Pass). Park access is by road - Charlotte Pass has the highest public road access in Australia. Trails are well marked from established carparks; permit requirements are limited but check the NSW National Parks site for seasonal restrictions.

Tips for Visiting Mount Twynam#

  • Start from Dead Horse Gap carpark for the gentlest approach; the route from Thredbo via the Ramsheads is longer but offers alpine ridgeline views.
  • Check the Snowy Mountains weather forecast and snow conditions - storms can arrive fast even in summer.
  • Bring an altimeter or GPS - the plateau is broad and featureless in low cloud; cairns are sparse on some approaches.
  • If aiming for sunrise on the summit, camp at Murray Saddle or use Charlotte Pass accommodation the night before.

Best Time to Visit Mount Twynam#

Best visited in summer or autumn for straightforward hiking and clear alpine views; winter requires specialist gear.

Summer
Dec-Feb · 0-15°C (32-59°F)
Warmest weather on the plateau, long daylight hours; wildflowers appear in January-February but storms are possible.
Autumn
Mar-May · -5-10°C (23-50°F)
Crisp air, clearer alpine visibility; best for ridge walks and fewer crowds.
Winter / Spring snow
Jun-Nov · -15-5°C (5-41°F)
Snowpack dominates; requires skis or snowshoes and avalanche awareness in winter and early spring.

Weather & Climate near Mount Twynam#

Climate

Mount Twynam's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in February) and freezing winters (coldest in July). Temperatures range from -6°C to 17°C. Heavy rainfall (2015 mm/year), wettest in October.

Air Quality: AQI 38 Good
Temperature & Rainfall
Temperature Range
17°
Warmest Month
-6°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 5° - 17° 11° 112 mm - - 5.8 m/s - -
February - 6° - 17° 11° 102 mm - - 5.3 m/s - -
March - 4° - 15° 7° 130 mm - - 4.8 m/s - -
April - 1° - 10° 1° 153 mm - - 6.1 m/s - -
May - -2° - 6° -3° 175 mm - - 7.5 m/s - -
June - -4° - 3° -7° 189 mm - - 7.4 m/s - -
July - -6° - 1° -9° 196 mm - - 6.7 m/s - -
August - -5° - 1° -8° 216 mm - - 7.0 m/s - -
September - -3° - 4° -6° 219 mm - - 7.6 m/s - -
October - 0° - 7° -2° 225 mm - - 7.5 m/s - -
November - 1° - 11° 3° 164 mm - - 4.6 m/s - -
December - 4° - 14° 6° 134 mm - - 4.9 m/s - -

Nearby Attractions to Mount Twynam#