Cordillera Blanca
Mountains High Peruvian Andes range with extensive tropical glaciers
Cordillera Blanca is a high Andean range in Ancash with many 6,000‑metre peaks, glaciers and alpine lakes such as Laguna 69. Trekkers and technical climbers come for multi‑day treks and glacier routes.
The Cordillera Blanca is a high Andean mountain range in Peru’s Ancash region and is noted as the highest tropical mountain range in the world. It contains many high, glaciated peaks and forms the central backbone of Huascarán National Park.
The range attracts mountaineers, trekkers and scientific teams for its concentrated collection of high peaks and glaciers. Key objectives include long multi-day treks such as the Santa Cruz valley and technical climbs on peaks like Huascarán and Alpamayo.
The Cordillera Blanca runs through the Ancash highlands and lies roughly 300-400 km north of Lima by road; the regional city of Huaraz is the main access point for park entry and mountain operations.
- Tropical glaciers: Considered the world's highest tropical mountain range and supports extensive tropical glaciers that have been retreating in recent decades.
What to See #
- Huascarán and glaciated peaks: Includes the Huascarán massif and many smaller peaks and glacier-fed valleys; the range contains some of the highest tropical glaciers in the world.
- Huascarán National Park: Serves as the core of Huascarán National Park, which protects high-Andean ecosystems, glacial landscapes and traditional mountain communities.
Tips for Visiting Cordillera Blanca #
- Visit the Cordillera Blanca during the dry season (May-September) and use Huaraz as your base-most treks, guides and transport originate there.
- Buy your Huascarán National Park entry/permits and register with park authorities or your guide before heading into multi-day treks; checkpoints and fees are enforced for many valley access points.
- Beat crowds on the most popular day hikes (Laguna 69, the lower Santa Cruz stages) by leaving pre-dawn or by hiking popular sections in the late afternoon; overnighting closer to trailheads spreads visitors over more hours.
- Hire locally based guides and porters for multi-day routes-not only do they know safe high-altitude route choices, but using them supports the regional mountain economy and improves logistics.
Best Time to Visit Cordillera Blanca #
The Cordillera Blanca is best visited in the dry season (May-September) when trails and climbing routes are most reliable.
Weather & Climate near Cordillera Blanca #
Cordillera Blanca's climate is classified as Tundra - Tundra climate with consistently warm temperatures year-round. Temperatures range from -6°C to 11°C. Moderate rainfall (825 mm/year) with a pronounced dry season.
January
January is cold with highs of 10°C and lows of -1°C. Significant rainfall (124 mm).
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February
February is cold with highs of 10°C and lows of -1°C. Significant rainfall (124 mm).
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March
March is cold with highs of 10°C and lows of -1°C. The wettest month with heavy rain (156 mm).
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April
April is cold with highs of 10°C and lows of -2°C. Regular rainfall (84 mm).
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May
May is cold with highs of 9°C and lows of -4°C. Light rainfall.
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June
June is cold with highs of 9°C and lows of -6°C. Almost no rain.
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July
July is cold with highs of 10°C and lows of -6°C. The driest month with just 7 mm.
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August
August is the coolest month with highs of 9°C and lows of -6°C. Light rainfall.
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September
September is cold with highs of 10°C and lows of -4°C. Moderate rainfall (37 mm).
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October
October is cold with highs of 10°C and lows of -4°C. Moderate rainfall (77 mm).
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November
November is cold with highs of 11°C and lows of -3°C. Regular rainfall (81 mm).
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December
December is cold with highs of 11°C and lows of -2°C. Regular rainfall (83 mm).
