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Cerro Castor

Mountain

Located in Tierra del Fuego, Cerro Castor is the southernmost ski resort, offering reliable snow, marked pistes and winter sports services for visitors based around Ushuaia.

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In this guide

Cerro Castor essentials

Country: Argentina
Driest months: Aug-Oct
Pay in: Peso ($)
Language: Spanish
Emergency: 101

Cerro Castor at a Glance

About Cerro Castor

Cerro Castor is a ski resort and mountain in Tierra del Fuego Province, Argentina, notable for being the southernmost ski resort in the world and for serving the Ushuaia region. It opened as an organised downhill skiing area in 1999.

The resort features groomed pistes, ski lifts and snowmaking infrastructure that support alpine skiing, snowboard and snow-tourism activities; the season is among the longest in South America, commonly running through the southern winter months. Facilities at the base include rental and instruction services for winter sports.

Cerro Castor was developed in the late 1990s to provide year-round mountain recreation for the Ushuaia area and has since become the principal downhill ski area serving that part of Tierra del Fuego. Infrastructure has expanded around the base area to support tourists and winter sport operators.

The mountain sits in the Fuegian Andes on the outskirts of the Ushuaia valley, on the main road leading away from the city of Ushuaia in southern Tierra del Fuego.

  • Southernmost ski resort: Recognised as the southernmost ski resort in the world, a unique selling point for winter sports enthusiasts.
  • Main season: Southern hemisphere winter months - typically June to October - form the main ski season, with reliable cold and snow at higher elevations.
When to Go

Best Time to Visit Cerro Castor

Visit during the southern winter (June-September) for the best chance of skiing conditions, but watch local weather reports.

Southern winter
June-September · -5-5°C
Ski season with cold conditions and strong winds possible.
Late spring
September-October · 0-8°C
Variable snowpack; quieter slopes but unpredictable weather.

Weather & Climate near Cerro Castor

Climate

Cerro Castor's climate is classified as Tundra - Tundra climate with cold summers (peaking in January) and freezing winters (coldest in July). Temperatures range from -4°C to 10°C. Moderate rainfall (599 mm/year).

Air Quality: AQI 70 Moderate
Temperature & Rainfall
Temperature Range
10°
Warmest Month
-5°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 3° - 10° 2° 59 mm - - 7.9 m/s - -
February - 3° - 10° 2° 49 mm - - 7.9 m/s - -
March - 1° - 8° 0° 55 mm - - 7.5 m/s - -
April - -1° - 6° -3° 54 mm - - 7.2 m/s - -
May - -2° - 3° -6° 50 mm - - 6.5 m/s - -
June - -4° - 1° -8° 56 mm - - 6.5 m/s - -
July - -5° - 0° -8° 52 mm - - 6.6 m/s - -
August - -4° - 2° -7° 36 mm - - 7.1 m/s - -
September - -3° - 4° -5° 30 mm - - 7.4 m/s - -
October - -1° - 7° -3° 39 mm - - 8.1 m/s - -
November - 1° - 8° -1° 64 mm - - 8.5 m/s - -
December - 2° - 9° 1° 55 mm - - 8.1 m/s - -
Getting There & Around

How to Get to Cerro Castor

Cerro Castor is about 26 km from Ushuaia by road. Regular shuttles and private transfers connect the resort with Ushuaia during the ski season.

Tips for Visiting Cerro Castor

  • Ski late in the season - Cerros in Tierra del Fuego can have extended snow into October because of its latitude.
  • Check lift status before travelling; operations are seasonal and weather-dependent.