Cerro Arenales

Mountain Glaciated volcanic peak in the Chilean Andes

Glaciated stratovolcano in Chile’s Aysén Region; mountaineers attempt glacial routes and distant views of Patagonia’s icefields, often accessed from remote fjords.

Main image
Cerro Arenales
-47.1964, -73.4692

How to Get to Cerro Arenales #

Access is from Coyhaique or Puerto Aysén via regional roads and often requires river crossings or local 4x4 transport. Approaches commonly begin from remote trailheads and require detailed logistical planning; most teams fly into regional airstrips and arrange local transport.

Tips for Visiting Cerro Arenales #

  • Cerro Arenales is a glaciated volcanic peak; only experienced mountaineers with glacier skills and guides should attempt it.
  • Check access permits and local land-use rules - parts of Aysén are in protected areas and require authorization.
  • Plan for lengthy approach logistics: travel in southern Chile often involves long drives, gravel roads and limited services.

Best Time to Visit Cerro Arenales #

The best window for expeditions to Cerro Arenales is the austral summer (December-February) when days are long and conditions are least severe.

Austral summer (climbing season)
December-February · -5°C to 5°C at summit; 5-15°C in valleys
Warmer temperatures and longer daylight make climbs and approaches more feasible, though weather remains unpredictable.
Shoulder summer
November and March · 0-8°C
Fewer storms but still variable; conditions can be good for experienced parties.

Weather & Climate near Cerro Arenales #

Climate

Cerro Arenales'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 -15°C to 0°C. Abundant rainfall (1188 mm/year), wettest in March.

Temperature & Rainfall
Temperature Range
Warmest Month
-15°
Coldest Month
Monthly Conditions

January

January is freezing with highs of 0°C and lows of -7°C. Regular rainfall (83 mm) and windy conditions.

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-7°

Weather

83 mm
Rainfall
14.5 m/s
Wind
Windy

February

February is freezing with highs of 0°C and lows of -7°C. Significant rainfall (111 mm) and windy conditions.

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-7°

Weather

111 mm
Rainfall
12.7 m/s
Wind
Windy

March

March is freezing with highs of -1°C and lows of -9°C. The wettest month with heavy rain (140 mm) and windy conditions.

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-9° -1°

Weather

140 mm
Rainfall
13.7 m/s
Wind
Windy

April

April is freezing with highs of -3°C and lows of -11°C. Significant rainfall (119 mm) and windy conditions.

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-11° -3°

Weather

119 mm
Rainfall
15.1 m/s
Wind
Windy

May

May is freezing with highs of -6°C and lows of -13°C. Moderate rainfall (79 mm) and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-13° -6°

Weather

79 mm
Rainfall
16.5 m/s
Wind
Windy

June

June is freezing with highs of -9°C and lows of -14°C. Regular rainfall (84 mm) and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-14° -9°

Weather

84 mm
Rainfall
16.8 m/s
Wind
Windy

July

July is the coldest month with highs of -9°C and lows of -15°C. Regular rainfall (92 mm) and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-15° -9°

Weather

92 mm
Rainfall
16.0 m/s
Wind
Windy

August

August is freezing with highs of -8°C and lows of -15°C. Regular rainfall (96 mm) and windy conditions.

Comfort

-11°
Feels Like Freezing
-11°C
Temperature
-15° -8°

Weather

96 mm
Rainfall
14.3 m/s
Wind
Windy

September

September is freezing with highs of -6°C and lows of -13°C. Regular rainfall (83 mm) and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-13° -6°

Weather

83 mm
Rainfall
13.8 m/s
Wind
Windy

October

October is freezing with highs of -3°C and lows of -12°C. Regular rainfall (93 mm) and windy conditions.

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-12° -3°

Weather

93 mm
Rainfall
13.9 m/s
Wind
Windy

November

November is freezing with highs of -2°C and lows of -10°C. Significant rainfall (107 mm) and windy conditions.

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-10° -2°

Weather

107 mm
Rainfall
13.7 m/s
Wind
Windy

December

December is freezing with highs of 0°C and lows of -8°C. Significant rainfall (101 mm) and windy conditions.

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-8° -1°

Weather

101 mm
Rainfall
14.6 m/s
Wind
Windy

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