Marmolejo

Mountain High Andean peak on the Argentina–Chile border

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.

Main image

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.
Marmolejo
Cerro Marmolejo, Mendoza Province (Argentine side)
-33.7340, -69.8783

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.

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).

Temperature & Rainfall
Temperature Range
-4°
Warmest Month
-22°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -4°C and lows of -13°C. The driest month with just 17 mm and windy conditions.

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-13° -4°

Weather

17 mm
Rainfall
12.4 m/s
Wind
Windy

February

February is freezing with highs of -4°C and lows of -14°C. Light rainfall and windy conditions.

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-14° -4°

Weather

27 mm
Rainfall
11.7 m/s
Wind
Windy

March

March is freezing with highs of -6°C and lows of -14°C. Moderate rainfall (36 mm) and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-14° -6°

Weather

36 mm
Rainfall
11.5 m/s
Wind
Windy

April

April is freezing with highs of -8°C and lows of -16°C. Moderate rainfall (38 mm) and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-16° -8°

Weather

38 mm
Rainfall
12.0 m/s
Wind
Windy

May

May is freezing with highs of -11°C and lows of -18°C. Regular rainfall (83 mm) and windy conditions.

Comfort

-15°
Feels Like Freezing
-15°C
Temperature
-18° -11°

Weather

83 mm
Rainfall
13.4 m/s
Wind
Windy

June

June is freezing with highs of -14°C and lows of -22°C. Moderate rainfall (76 mm) and windy conditions.

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-22° -14°

Weather

76 mm
Rainfall
14.9 m/s
Wind
Windy

July

July is the coldest month with highs of -14°C and lows of -22°C. The wettest month with heavy rain (103 mm) and windy conditions.

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-22° -14°

Weather

103 mm
Rainfall
13.8 m/s
Wind
Windy

August

August is freezing with highs of -13°C and lows of -22°C. Moderate rainfall (75 mm) and windy conditions.

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-22° -13°

Weather

75 mm
Rainfall
13.6 m/s
Wind
Windy

September

September is freezing with highs of -12°C and lows of -21°C. Moderate rainfall (55 mm) and windy conditions.

Comfort

-17°
Feels Like Freezing
-17°C
Temperature
-21° -12°

Weather

55 mm
Rainfall
12.0 m/s
Wind
Windy

October

October is freezing with highs of -10°C and lows of -20°C. Moderate rainfall (43 mm) and windy conditions.

Comfort

-15°
Feels Like Freezing
-15°C
Temperature
-20° -10°

Weather

43 mm
Rainfall
11.2 m/s
Wind
Windy

November

November is freezing with highs of -8°C and lows of -17°C. Light rainfall and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-17° -8°

Weather

29 mm
Rainfall
11.7 m/s
Wind
Windy

December

December is freezing with highs of -5°C and lows of -15°C. Light rainfall and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-15° -5°

Weather

19 mm
Rainfall
12.6 m/s
Wind
Windy

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