Nevado AnallajsiNevado Anallajsi at a Glance
About Nevado Anallajsi
Nevado Anallajsi is a volcanic peak in the Oruro Department of western Bolivia, part of the Andean Cordillera Occidental. It is one of several high Andean volcanoes that rise above the Altiplano.
The mountain appears as a snow-capped, conical volcano from surrounding high plains and attracts mountaineers and geologists interested in Andean volcanism and high-altitude landscapes. Routes approach from the Bolivian high plateau and require altitude acclimatisation.
Anallajsi is the product of volcanic activity within the Andean range and forms part of the chain of stratovolcanoes running along Bolivia’s western frontier. Its slopes and summit reflect typical high-Andean volcanic geology.
Geographically it sits in western Bolivia’s high plateau region, within Oruro Department in the western Andes, surrounded by other volcanic peaks and the broad Altiplano.
Best Time to Visit Nevado Anallajsi
The Bolivian dry season (May-October) offers the most reliable conditions for high-altitude trekking and mountain expeditions.
Weather & Climate near Nevado Anallajsi
Nevado Anallajsi's climate is classified as Tundra - Tundra climate with cold summers (peaking in December) and freezing winters (coldest in July). Temperatures range from -12°C to 13°C. Semi-arid with limited rainfall with a pronounced dry season.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -3° - 11° | 1° | 111 mm | - | - | 3.2 m/s | - | - |
| February | - | -2° - 10° | 1° | 92 mm | - | - | 3.1 m/s | - | - |
| March | - | -3° - 10° | 1° | 86 mm | - | - | 2.9 m/s | - | - |
| April | - | -6° - 11° | 0° | 8 mm | - | - | 2.8 m/s | - | - |
| May | - | -9° - 10° | -3° | 2 mm | - | - | 2.8 m/s | - | - |
| June | - | -12° - 8° | -6° | 2 mm | - | - | 3.2 m/s | - | - |
| July | - | -12° - 8° | -6° | 2 mm | - | - | 3.2 m/s | - | - |
| August | - | -11° - 9° | -5° | 2 mm | - | - | 3.3 m/s | - | - |
| September | - | -9° - 10° | -3° | 8 mm | - | - | 3.4 m/s | - | - |
| October | - | -7° - 12° | -1° | 9 mm | - | - | 3.3 m/s | - | - |
| November | - | -5° - 13° | 1° | 32 mm | - | - | 3.4 m/s | - | - |
| December | - | -3° - 12° | 1° | 64 mm | - | - | 3.3 m/s | - | - |
How to Get to Nevado Anallajsi
Access is usually from towns in Oruro Department; journeys often require 4x4 transport and coordination with local guides or agencies. Road and trail conditions vary by season.
Tips for Visiting Nevado Anallajsi
- Acclimatize before attempting high-altitude treks; Anallajsi's summit and approaches can reach thin air quickly.
- Hire a local guide familiar with routes, weather patterns, and permits for climbing in Oruro Department.
- Check weather windows-Andean storms can arrive quickly; plan flexible itineraries and have warm gear.