Plizio Visual Lab

Viedma Lake

Plizio editorial teamUpdated: Jun 2026Data Sources

Lake

Weather…

Lake Viedma is a massive glacial lake in Santa Cruz Province, situated just north of Lake Argentino at the foot of the Southern Patagonian Ice Field. It is primarily fed by the imposing Viedma Glacier, which flows into the lake's western end with a width of five kilometers. The lake's water is distinguished by an intense, cloudy turquoise hue, a result of the high concentration of suspended sediments from glacial erosion. Surrounded by a windswept steppe landscape that contrasts sharply with the icy Andean peaks, it features a dramatic setting for exploration. Visitors from the nearby town of El Chaltén often take boat tours to get close to the glacier's calving face. The lake is approximately 80 kilometers long and serves as a vital part of the regional hydrological system, eventually draining into Lake Argentino via the La Leona River.

Location: Argentina
Nearby: El Calafate (30 km)

Best time to visit & climate

The most pleasant time to visit is Jan, Feb, Dec.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	11	11	9	5	2	-1	-2	0	3	5	8	10
Rain mm	22	22	27	29	39	33	29	31	20	23	24	27

📋 Practical info

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Getting there

This massively impressive glacier-fed lake is usually approached via the Argentine trekking capital of El Chaltén. From there, unpaved tracks and hiking trails lead adventurous visitors closer to the icy shore.

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Best season

Due to the notoriously harsh Patagonian weather conditions, the summer months spanning from December to March are absolutely the safest and most comfortable time for visits, boat tours, and extensive hikes.

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Terrain & paths

The barren, almost treeless steppe landscape surrounding the frequently turbulent water is heavily shaped by wind and ice. Hiking trails offer very little cover and are often rocky, dusty, and highly exposed.

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What to bring

Because there is practically no natural windbreak whatsoever, multi-layered clothing, fully windproof outer jackets, alongside incredibly sturdy hiking boots and good sunglasses are absolutely imperative.

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Parking

In El Chaltén, adequate parking is readily available at most accommodations. Those driving closer to the lake itself typically park impromptu in unpaved, dusty pullouts located right along the rugged track.

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Safety

Patagonian storms can literally blow people right off their feet, which is why hikes should be strictly avoided during severe weather warnings. The frigid, icy water also poses a massive, deadly hypothermia risk.

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Time needed

When simply enjoyed from a roadside viewpoint, the brief stop might last only an hour. However, if participating in a guided boat tour up to the impressive glacier, a full, entirely dedicated day must be calculated.