Las Leñas snow report
Legendary steep terrain off the Marte chair, the southern hemisphere's freeride pilgrimage. Wind is the enemy; check gusts before the long drive.
Argentina · Southern Hemisphere · live from the weather model at 2240–3430 m7349–11253 ft
Imperial when your device is on a US time zone, metric otherwise, until you choose.
Conditions right now
Read at summit elevation the moment you opened this page.
Hourly windows, accumulation ranges, confidence and travel flags, or the transparent 0–100 Ski Meter score.
Weather data by Open-Meteo.com (CC BY 4.0), adapted for display. Elevations are approximate published figures; forecasts are model estimates, not guarantees.
The mountain right now
The live freezing level drawn on the elevation profile. Above the snow line, precipitation falls and stays as snow.
Terrain shape is schematic; elevations are the resort's approximate published figures.
Ten seasons of snow at Las Leñas
Daily snow depth at this destination's model grid cell, read as ten complete seasons to 31 August 2026. Natural snow only.
In every one of the ten seasons the depth at this cell reached 30 cm12 in and held it for at least a fortnight. The dates above are the median of those ten. The earliest was 15 Apr in 2016, the latest 25 Jun in 2021.
The band spans the shallowest and the deepest of the ten seasons on each day, and the line runs through the median. It reaches 434 cm171 in, the deepest single day in the record. The dashed line is the 30 cm12 in threshold, and the shaded column is the week Las Leñas traditionally opens, 11 to 17 June.
The index asks a different question of the same ten seasons: in the week this mountain traditionally opens, had 30 cm12 in arrived? All 53 destinations are scored side by side, on one rule.
How the start date is found. For each season this takes the longest unbroken run of days at 30 cm (12 in) or more, and counts it only when that run lasted at least 14 days, because a week of early snow that melts out is not a season starting.
What the model cell is. The reanalysis gives this destination one grid square of roughly 9 km5.6 mi and one elevation for it, being the average of all the terrain inside it. Here that is 2155 m7070 ft, against a resort base of 2240 m7349 ft and a summit of 3430 m11253 ft. Compare the cell against those two before you read any number here as a verdict on the mountain. A reanalysis is a model, not a measurement: it can be too smooth over complex terrain, and it can miss a local storm.
Natural snow only. The model knows about weather. It does not know about snow cannons, and no snowmaking is modelled anywhere. The opening week is traditional, not contractual: it is the window this mountain has historically opened in, not a promise. Daily values run to 31 August 2026.
Take the data. Both tables are free to use and free to republish under CC BY 4.0: one row per destination, and one row per destination per season. Both are in centimetres and metres, whichever units this page shows.
Why it snows here
High desert Andes: storms are less frequent than in Chile's coast-facing ranges, but the terrain above 3,000 m9,843 ft turns each one into wide-open powder fields.
Reading Las Leñas like a forecaster
The number that matters most at Las Leñas is the difference between the base (2240 m7349 ft) and the summit (3430 m11253 ft): when the freezing level sits between the two, the mountain is split into rain or wet snow below and dry snow above. The Ski Meter reads the model at both elevations and scores the day with every point accounted for; the full report adds hourly timing, accumulation ranges and confidence tags so you can decide when to travel, not just whether.