Nevado Anallajsi
Mountain Volcanic mountain in Oruro Department of Bolivia
In Bolivia’s Oruro highlands, Nevado Anallajsi is a high Andean volcano offering mountaineering routes and wide views across puna plateaus and neighbouring peaks.
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.
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.
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.
January
January is cold with highs of 11°C and lows of -3°C. The wettest month with heavy rain (111 mm).
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February
February is cold with highs of 10°C and lows of -2°C. Regular rainfall (92 mm).
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March
March is cold with highs of 10°C and lows of -3°C. Regular rainfall (86 mm).
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April
April is cold with highs of 11°C and lows of -6°C. Almost no rain.
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May
May is cold with highs of 10°C and lows of -9°C. The driest month with just 2 mm.
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June
June is freezing with highs of 8°C and lows of -12°C. The driest month with just 2 mm.
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July
July is the coldest month with highs of 8°C and lows of -12°C. The driest month with just 2 mm.
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August
August is freezing with highs of 9°C and lows of -11°C. The driest month with just 2 mm.
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September
September is cold with highs of 10°C and lows of -8°C. Almost no rain.
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October
October is cold with highs of 12°C and lows of -7°C. Almost no rain.
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November
November is cold with highs of 13°C and lows of -5°C. Moderate rainfall (32 mm).
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December
December is cold with highs of 12°C and lows of -3°C. Moderate rainfall (64 mm).
