Main image

codiferous (Cody H) CC BY-SA 4.0 Wikimedia Commons

Illampu

Mountain

A glaciated peak in Bolivia's Cordillera Real rising to about 6,368 metres, Illampu attracts technical mountaineers and high‑altitude trekkers. Expeditions approach from Sorata and combine glacier travel with multi-day camp logistics and acclimatisation.

Illampu La PazUyuniSucreCopacabanaPotosíSanta CruzIllampu
In this guide

Illampu essentials

Admission: No formal admission (climbing permits and guide fees vary; hire a guide in Sorata or La Paz)

About Illampu

Illampu is a high peak of the Cordillera Real in Bolivia with an elevation of about 6,368 metres, making it one of the range’s principal summits. It is a heavily glaciated mountain known for steep faces and sustained alpine routes.

Mountaineers come for technically demanding climbs on steep mixed ice and rock routes and for glaciated ridges that require roped glacier travel. The mountain is noted for long approaches from base valleys and for panoramic views of nearby peaks in the Cordillera Real.

Illampu is part of the Andean Cordillera Real massif and has been a focus of alpine exploration since the early 20th century; it remains an important objective in Bolivian high-mountain climbing. No political or built history applies beyond its geological formation and climbing history.

Illampu lies in the La Paz Department of Bolivia, within the Cordillera Real. The town of Sorata serves as the common approach and staging point for expeditions into the massif.

  • Climbing difficulty: Climbs are technical and glaciated; parties should be prepared for steep ice and rock routes and bring appropriate equipment and experience.
  • Climbing season: Best climbing season is during the Andean dry months, generally the austral winter and spring (roughly May to September), when weather is more stable.
Things to Do
When to Go

Best Time to Visit Illampu

The best time for expeditions on Illampu is the Bolivian dry season (May-September), when the Andes hold clearer weather and fewer storms.

Dry season (climbing)
May-September · -10 to 10°C on the summit, milder lower
Clear skies and stable weather make summit attempts most feasible; nights are bitterly cold.
Shoulder season (trekking)
April and October · -5 to 12°C
Fewer trekkers but weather can be unpredictable; snow at higher altitudes possible.

Weather & Climate near Illampu

Climate

Illampu's climate is classified as Ice Cap - Ice Cap climate with consistently warm temperatures year-round. Temperatures range from -12°C to 8°C. Moderate rainfall (881 mm/year) with a pronounced dry season.

Air Quality: AQI 61 Moderate
Temperature & Rainfall
Temperature Range
8°
Warmest Month
-13°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -4° - 6° -3° 163 mm - - 3.0 m/s - -
February - -4° - 5° -2° 148 mm - - 2.9 m/s - -
March - -5° - 6° -2° 132 mm - - 2.5 m/s - -
April - -7° - 7° -3° 49 mm - - 2.5 m/s - -
May - -9° - 7° -4° 25 mm - - 2.5 m/s - -
June - -12° - 6° -7° 12 mm - - 3.1 m/s - -
July - -13° - 6° -8° 15 mm - - 3.1 m/s - -
August - -11° - 7° -7° 17 mm - - 3.3 m/s - -
September - -8° - 7° -5° 43 mm - - 3.2 m/s - -
October - -7° - 8° -3° 53 mm - - 3.0 m/s - -
November - -6° - 8° -3° 85 mm - - 3.2 m/s - -
December - -5° - 7° -2° 139 mm - - 3.1 m/s - -
Getting There & Around

How to Get to Illampu

Travel from La Paz to Sorata by bus or private transfer - roughly a 3-4 hour journey (road conditions vary). Sorata is the usual base; approaches and hireable guides are arranged there. The standard forestry/bridge approach follows trails north of Sorata into the Cordillera Real.

Tips for Visiting Illampu

  • Base from Sorata (2,650 m) - acclimatize there for at least two days before attempting any high routes.
  • Hire local Aymara or mestizo mountain guides from Sorata; they know the crevasse patterns and seasonal water sources.
  • Best approach and porters change after heavy rains - check with guides in Sorata for the current approach via the southern ice slopes.