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J Brew CC BY-SA 4.0 Wikimedia Commons

Mount Ossa (Tasmania)

Mountain

Tasmania's highest peak, Mount Ossa sits in the Cradle Mountain-Lake St Clair National Park. Walkers follow rough trails through alpine heath and button grass; many combine the climb with the Overland Track.

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In this guide

Mount Ossa (Tasmania) essentials

Address: Mount Ossa - within Cradle Mountain-Lake St Clair National Park / Central Highlands, Tasmania, Australia
Admission: Free (no general park entry fee; guided services/parking may charge)

About Mount Ossa (Tasmania)

Mount Ossa is the highest peak in the Australian state of Tasmania, reaching 1,617 m (5,305 ft). It sits within Cradle Mountain-Lake St Clair National Park and forms part of the Central Highlands and the Pelion Range.

The summit is a popular objective for walkers and is commonly reached from the Overland Track or from the nearby Pelion huts, with a marked route leading to the top. Vegetation changes from cool temperate rainforest at lower elevations to alpine heath and rock near the summit, and weather can change rapidly.

Geographically Mount Ossa occupies central Tasmania’s highland plateau and is part of the park’s network of trails and huts that support multi-day hiking routes.

  • Elevation and park: Highest mountain in Tasmania at 1,617 m (5,305 ft) and located within Cradle Mountain-Lake St Clair National Park.
  • Access and route: Commonly climbed as a side trip from the Overland Track or via the Pelion area; the summit route is a marked path but can be steep and exposed in poor weather.

Tips for Visiting Mount Ossa (Tasmania)

  • Plan climbs in the Tasmanian summer and late spring (warmer, longer days and less snow) and start very early to take advantage of stable morning weather and better visibility for summit views.
  • Access is typically made via the walking routes in the Pelion area on the Overland Track rather than by road; factor the Overland Track itinerary or a day trip from nearby huts into your plans and check track conditions with Parks & Wildlife Tasmania beforehand.
  • Aim for weekdays or outside peak Overland Track weeks to reduce congestion on approach tracks, and allow extra time for the final sections, which involve short steep or rocky scrambles that slow group progress.
Things to Do
When to Go

Best Time to Visit Mount Ossa (Tasmania)

Best visited in Tasmanian summer (Dec-Feb) when trails and summits are most accessible.

Summer
Dec-Feb · 5-15°C
Most stable and accessible conditions for hiking; alpine areas are cool but largely snow-free.
Shoulder seasons
Sep-Nov, Mar-May · 0-10°C
Unpredictable weather with possible snow at higher elevations; quieter on the trails but require proper gear.
Winter
Jun-Aug · -5-5°C
Cold with frequent snow and ice at higher elevations; many routes are technical or impassable.

Weather & Climate near Mount Ossa (Tasmania)

Climate

Mount Ossa (Tasmania)'s climate is classified as Tundra - Tundra climate with cold summers (peaking in February) and cold winters (coldest in July). Temperatures range from -2°C to 15°C. Abundant rainfall (1756 mm/year), wettest in July.

Air Quality: AQI 23 Good
Temperature & Rainfall
Temperature Range
15°
Warmest Month
-2°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 4° - 15° 7° 95 mm - - 5.3 m/s - -
February - 5° - 15° 7° 85 mm - - 5.6 m/s - -
March - 3° - 13° 5° 100 mm - - 5.4 m/s - -
April - 2° - 9° 1° 142 mm - - 6.3 m/s - -
May - 0° - 6° -2° 165 mm - - 6.9 m/s - -
June - -1° - 4° -4° 167 mm - - 7.4 m/s - -
July - -2° - 2° -6° 191 mm - - 6.9 m/s - -
August - -2° - 3° -5° 188 mm - - 7.3 m/s - -
September - -1° - 5° -4° 178 mm - - 7.9 m/s - -
October - 0° - 8° -1° 171 mm - - 7.5 m/s - -
November - 1° - 10° 2° 144 mm - - 5.3 m/s - -
December - 3° - 12° 4° 130 mm - - 6.4 m/s - -