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If you are an expert skier and the phrase El Nino year in South America does not immediately make you pay attention it should. While El Nino is usually a problem for resorts in the Pacific Northwest or British Columbia, its relationship with the Andes is the opposite.
A developing El Nino heading into a Southern Hemisphere winter is one of the clearest positive signals in ski forecasting that the Andes will get above average snowfall.
July 2026 El Nino Forecast Update
El Nino has strengthened materially since the June outlook, with the Climate Prediction Center now placing the probability of a strong event at 97% through early spring 2027.
This matters because July is the heart of the South American ski season and the current atmospheric setup should deliver one of the best mid‑winter cycles in years. Storm frequency remains elevated, freezing levels are running lower than typical El Nino years.
Central Chile (Portillo, Valle Nevado, La Parva, El Colorado) should see consistent 4–7 day storm cycles, Southern Chile (Nevados de Chillan, Corralco) is experiencing the strongest positive precipitation snow forecasts in the Andes and Las Lenas hopefully benefit from improved moisture transport across the cordillera.
In short: July 2026 is a top‑tier El Niño month for South American skiing, with deep bases, cold mid‑winter temperatures and reliable refresh cycles heading into August.
See our other El Nino forecasts:
- Weekly South American Ski Weather Update
- What El Nino Means For The Alps
- How El Nino Affects North American Ski Resorts
Why El Nino Works Differently In The Andes
Most North American skiers think of El Nino as a mixed or negative signal because of how it affects California British Columbia or the Southwest. In the Andes the same ocean pattern produces almost the opposite outcome.
During an El Nino event sea surface temperatures rise in the central and eastern tropical Pacific. In North America this often shifts the jet stream south and produces warmer drier conditions across the Pacific Northwest or interior Canada which is bad news for Whistler or Fernie regulars.
In the Andes the warmer Pacific waters weaken the normal trade winds and allow more moisture rich storm systems to push east into South America. When that moisture hits the Andes and rises quickly in elevation it dries out over the high altitude desert before producing snowfall with a low water content. The result is the light dry Chilean powder that anyone who has skied there in a good winter knows is comparable to the best days in Utah.
In strong El Nino years the Andes can receive snowfall at a scale that is hard to process. During one storm sequence in a prior El Nino cycle Portillo recorded 157 inches of snow in five days. Extended seasons into November are not unusual. The high central Andes which includes the core Chilean resorts and adjacent Argentine terrain responds more directly and more reliably to El Nino than almost any other ski region on the planet.
The 2026 South America Ski Season Forecast
The forecast for the 2026 Southern Hemisphere winter leans toward near normal to above normal snowfall in the high central Andes with the strongest signal favoring the mid July through August window.
Temperature guidance is warmer than average across both Chile and Argentina at lower elevations, which means the upper mountain story will look better than the lower mountain elevations.
The practical takeaway is simple. Elevation matters more than usual in 2026. Resorts with higher base elevations and access to upper mountain terrain above 3000 meters are strongly favored. Resorts with lower bases or a large share of terrain near the rain snow line face more risk in a warm leaning winter even with above average precipitation.
The weak La Nina that persisted through early 2026 is fading and neutral conditions are expected through late fall before El Nino takes hold as winter begins. Early season conditions in June may be uneven. The core of the season from July through mid August is where the El Nino signal becomes most meaningful.
Who This Season Favors
For expert skiers the 2026 South America season favors:
- High elevation Chilean resorts with bases well above the rain snow line
- Upper mountain terrain above 3000 meters with strong storm exposure
- Trips timed for mid July through mid August
It is less favorable for:
- Lower elevation resorts with terrain near the rain snow line
- Short notice trips in early June
- Skiers who want groomers more than off piste terrain
Geo Notes For South America Ski Travelers
Americans & Canadian Ski Travelers
Fastest Routes
The cleanest itineraries are MIA, DFW, JFK or LAX to Santiago. Bariloche is reached via Buenos Aires with a domestic connection.
Transfer Reality
Santiago to Valle Nevado is about 90 minutes. Santiago to Portillo is ~ 2hrs. Bariloche has its own airport with regular flights from Buenos Aires.
Terrain Reality
If your trip includes off piste glacier or high exposure terrain, make sure your travel insurance covers Alpine rescue and winter sports.
Brazilian Ski Travelers
Fastest Routes
The most direct access to Chilean resorts is from Sao Paulo or Rio to Santiago. For Argentine terrain most travelers route through Buenos Aires then connect to Bariloche.
Trip Strategy
A one week trip focused on Valle Nevado or Portillo is the simplest option. Longer trips can add Bariloche or Las Lenas if the storm track lines up.
Chile Domestic Ski Travelers
Fastest Routes
Santiago based skiers have direct access to Valle Nevado La Parva El Colorado and Portillo. Nevado de Chillan is reached by a longer drive or domestic flight plus transfer.
Season Strategy
In a warm leaning El Nino year, prioritize higher elevation terrain and upper mountain laps during storm cycles.
Mexican and Central American Ski Travelers
Fastest Routes
The most reliable itineraries are MEX to Santiago or MEX to Buenos Aires with onward connections to Valle Nevado Portillo or Bariloche.
Trip Strategy
For a first South America trip focus on one high elevation Chilean resort rather than trying to cover both Chile and Argentina in a single week.
Australian and New Zealander Ski Travelers
Fastest Routes
The cleanest itineraries are SYD or MEL & AKL to Santiago with onward transfers to Valle Nevado or Portillo.
Trip Strategy
For Southern Hemisphere skiers South America can be a higher elevation alternative to local resorts in a warm winter especially in a strong El Nino year.
The Top South American Ski Resorts For 2026
Portillo Chile
Portillo is the most historically significant ski resort in South America and in an El Nino year it is as close to a sure bet as ski forecasting offers. The base sits near 2880 meters which is well above the rain snow line even in a warm winter. The north facing bowl terrain collects storm snowfall efficiently.
The terrain is serious and the off piste can rival the Alps. This is not a resort for intermediate skiers who want groomed cruisers. For expert skiers a big El Nino winter at Portillo is a career level trip.
Valle Nevado Chile
Valle Nevado is the largest ski area in South America and the most practical choice for expert North American skiers who want El Nino conditions with modern infrastructure. The base sits near 3000 meters and the top lift reaches about 3670 meters which places the resort in the elevation band that benefits most from an El Nino storm cycle.
The terrain is demanding and the off piste routes off the upper lifts rival anything in North America. The heli operation which adds about 5000 vertical feet of terrain is serious. Valle Nevado is about 90 minutes from Santiago which makes logistics simple.
Las Lenas Argentina
Las Lenas is the wild card in any South America ski itinerary and in a big El Nino year it can deliver some of the most spectacular powder skiing on the continent. The Argentine side of the Andes receives less direct moisture from Pacific storm systems because the range wrings out much of the precipitation on the Chilean side.
In El Nino years the storm track lines up more favorably for Las Lenas but conditions are more variable and timing matters. At its best Las Lenas offers lift served vertical similar to Val d Isere in terms of off piste scale. The Marte chair accesses terrain that is genuinely committing.
Nevado de Chillan Chile
Nevado de Chillan sits farther south than the central Chile resorts which changes its weather exposure. South of the core central Chile latitude band the El Nino signal loses clarity and snowfall totals depend more on storm track details.
Even so Nevado de Chillan has a loyal expert following for its off piste terrain and volcanic features. It benefits from El Nino years even if less dramatically than the northern resorts. It is a strong secondary stop on a multi week trip.
Catedral Alto Bariloche Argentina
Catedral Alto is the largest ski area in South America by skiable terrain and anchors a genuine ski town in Bariloche. Its position on the Argentine side of the Andes means it benefits less directly from El Nino moisture enhancement than the Chilean resorts.
Bariloche is one of the most appealing mountain destinations in the Southern Hemisphere. The combination of Patagonian lake scenery European influenced architecture and serious terrain similar to St Anton makes it a compelling destination. The off piste terrain off Cathedral peak and the backcountry access are the main draws.
Practical Planning Notes For North American Skiers
The South America ski season runs from mid June through late September with the peak snowfall window from July through mid August. Direct flights to Santiago SCL from Miami Dallas New York or Los Angeles are available on major carriers. Bariloche is reached via Buenos Aires with a domestic connection.
Santiago to Valle Nevado is about 90 minutes. Santiago to Portillo is about two hours. Bariloche has its own airport with regular flights from Buenos Aires.
One underused option is pairing South America with an Alps trip. If your primary ski destination is the Alps next winter and South America is a late summer training trip the two goals work well together.
Many expert North American skiers use a July week in Chile to stay sharp and assess conditions before committing to their Alps itinerary for the following winter.
The Bigger Picture: El Nino Cuts Both Ways
The same El Nino that is pointing toward strong conditions in the Andes this Southern Hemisphere winter is the one developing and potentially peaking during the Northern Hemisphere ski season of 2026 27.
For the Alps the implications are different. El Nino tends to produce a warmer than average winter in Europe which raises snowlines and increases variability at lower elevations while high altitude glacier resorts hold up better.
If you are planning your 2026 27 Alps trip and want to understand which resorts are most insulated from an El Nino winter in Europe we cover that with a focus on:
- Elevation
- Glacier terrain
- North facing aspects
- Continental cold pools
El Nino Winter 2026 27: Which Alps Ski Resorts Hold Up Best
How El Nino Affects Skiing Around The World
- How El Nino Affects The Alps Ski Resorts
- How El Nino Affects North American Ski Resorts
- El Nino Winter 2026 27: Plan Your Alps Ski Trip
- How El Nino Affects The Caucasus And Kazakhstan