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Pablo H from CC BY-SA 4.0 Wikimedia Commons

Marmolejo

Mountain

Marmolejo crowns an Andes massif on the Argentina-Chile border; high‑altitude climbers attempt its ice-and-rock routes from Mendoza, tackling long glacier approaches and remote camps.

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In this guide

Marmolejo essentials

Address: Cerro Marmolejo, Mendoza Province (Argentine side)
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About Marmolejo

Marmolejo is a high stratovolcano in the Andes located on the border between Argentina and Chile, with part of its massif in Mendoza Province, Argentina. Its summit reaches 6,108 metres above sea level.

The mountain is glaciated near its upper slopes and is climbed by mountaineers who approach from either the Argentine or Chilean side; routes are high-altitude and typically require glacier travel skills. The peak is notable within the region for its prominence among neighboring Andean summits.

Marmolejo is a volcanic edifice formed as part of the Andean volcanic arc. It stands within the high, arid puna zone of the central Andes and is part of the continuous chain of high volcanoes along the continental divide.

Geographically the volcano straddles the Argentina-Chile border; the Argentine portion lies in Mendoza Province within the high Andes. The massif is remote from major cities and is accessed from regional mountain bases and border tracks.

  • Elevation: Summit reaches 6,108 metres above sea level, making Marmolejo one of the higher Andean stratovolcanoes on the Argentina-Chile frontier.
Things to Do
When to Go

Best Time to Visit Marmolejo

Climbing Marmolejo is best attempted in the austral summer when weather windows are more reliable and lower snowpack is common.

Southern hemisphere summer (climbing season)
December-March · Cold at altitude (sub-zero at night); daytime in the lower ranges 5-10°C
Most secure window for attempting high-altitude climbs; snow and ice conditions are more stable.

Weather & Climate near Marmolejo

Climate

Marmolejo's climate is classified as Ice Cap - Ice Cap climate with freezing summers (peaking in January) and freezing winters (coldest in July). Temperatures range from -22°C to -4°C. Moderate rainfall (601 mm/year).

Air Quality: AQI 89 Moderate
Temperature & Rainfall
Temperature Range
-4°
Warmest Month
-22°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -13° - -4° -19° 17 mm - - 12.4 m/s - -
February - -14° - -4° -20° 27 mm - - 11.7 m/s - -
March - -14° - -6° -21° 36 mm - - 11.5 m/s - -
April - -16° - -8° -24° 38 mm - - 12.0 m/s - -
May - -18° - -11° -28° 83 mm - - 13.4 m/s - -
June - -22° - -14° -33° 76 mm - - 14.9 m/s - -
July - -22° - -14° -33° 103 mm - - 13.8 m/s - -
August - -22° - -13° -32° 75 mm - - 13.6 m/s - -
September - -21° - -12° -30° 55 mm - - 12.0 m/s - -
October - -20° - -10° -28° 43 mm - - 11.2 m/s - -
November - -17° - -8° -24° 29 mm - - 11.7 m/s - -
December - -15° - -5° -21° 19 mm - - 12.6 m/s - -
Getting There & Around

How to Get to Marmolejo

Approaches are made from the Mendoza side (Argentina) or the Atacama/Antofagasta regions on the Chilean side. Long drives on gravel roads and multi-day foot approaches are typical; local guiding services in Mendoza or San Juan provinces organize expeditions.

Tips for Visiting Marmolejo

  • If attempting the ascent, plan for a high-altitude alpine climb and check local guides in Mendoza for route conditions.
  • Check Chilean and Argentine border regulations if approaching from the west - peaks on the border sometimes have bureaucratic complications.