GFS
USA · NOAA / NCEPGlobal Forecast System: a numerical model that simulates atmospheric physics.
Destination photograph · Chapelco Chapelco · CC BY-SA 4.0 · Image source and modifications
Loading local weather signals…
GFS · ECMWF IFS · AIGFS · AIFS · GEM. Forecast at an indicative destination point; not a summit forecast or live snow depth.
Equal-weight blend of available complete local days. Days 8–14 are less certain; missing data remain blank. Snowfall cm are fresh snow, not snow depth. Sea-level pressure. Terrain temperature downscaling by Open-Meteo; no Agios Stefanos calibration. A point forecast cannot describe every piste or assess avalanche danger. Open-Meteo
This summary uses the destination’s fixed coordinates and the historical service’s terrain elevation. It does not change with the forecast’s manual elevation setting. Mountain terrain, wind redistribution and snowmaking are not fully represented. Snowfall days do not indicate opening days or piste snow depth.
Explore rain and snowfall frequency, monthly average daily lows and highs, and daily temperature extremes within this decade.
The historical summary loads automatically…
| Month | Mean low °C | Mean high °C | Precipitation mm/month | Rain days/month | Snowfall days/month |
|---|
These are ERA5 reanalysis estimates on an approximately 25 km grid, with provider temperature downscaling, rather than station observations or official records. This decade is not a 30-year climate normal.
Rain day: liquid rain ≥1 mm. Snowfall day: modeled new snowfall ≥0.1 cm, which does not imply snow cover. Precipitation includes rain and the water equivalent of snow. Snow frequencies are especially approximate in mountainous and coastal locations.
Monthly averages use complete months and annual averages use complete years for each variable. Temperature extremes use complete available years within this decade. Coverage is shown on the cards and in table cell tooltips. This historical summary does not apply a forecast calibration.
Sources: Open-Meteo Historical Weather API · Copernicus / ERA5
Forest skiing above San Martín de los Andes.
Use Chapelco as your starting point when comparing accommodation in Neuquén. Check the official operator’s piste map, lift status and transfer arrangements before choosing your base.
July–September is an indicative winter travel window for this destination. It is not an opening calendar or a snow guarantee. Check the resort’s own updates before committing to dates.
Ski above the lakes of northern Patagonia or travel south to Tierra del Fuego. Distances are substantial, so plan these as distinct trips.
Chapelco is listed in Neuquén, Argentina. Use the guide to get a feel for the destination, then compare the forecast with nearby ski areas as you plan your time on the mountain.
For a day focused on mountain views, look at visibility and cloud cover as well as temperature. Check the resort’s own updates for sightseeing lifts and access.
Travelling with children or beginners? Check the official piste map for learning areas and look into lessons before choosing where to stay.
A nearby listed settlement is San Martin de los Andes, approximately 5 km from the forecast point in a straight line. GeoNames lists a population of 23,519 for this settlement.
Population refers to the settlement, not the ski area or its visitors, and may not reflect the latest census. Source: GeoNames · CC BY 4.0
The forecast point is at -40.2040, -71.3480, using the America/Argentina/Salta time zone. The nearby ski-area links below let you compare conditions across the region.
The shortlist
Patagonian lake views and a broad mountain area near Bariloche.
The shortlist
Forest-lined pistes near Ushuaia, at the southern end of Argentina.
The shortlist
A high Andean resort in Mendoza province.
Distances are approximate straight-line measurements between map points. They are not driving distances and do not imply a lift or piste connection.
Global Forecast System: a numerical model that simulates atmospheric physics.
Artificial Intelligence Global Forecast System: a machine-learning model initialized from NOAA atmospheric analyses.
Integrated Forecasting System: the intergovernmental European centre’s numerical model. IFS 9 km and IFS 0.25° are products of the same model family on different data grids.
Artificial Intelligence Forecasting System: this page uses AIFS Single, which produces one forecast scenario.
Global Environmental Multiscale: the atmospheric model within Canada’s GDPS. The current system combines numerical prediction with large-scale guidance from the GEML AI model.
The blend uses the values available for each day and variable. Coverage falls as individual models reach their forecast limits. The two IFS products are not independent models. Model spread shows disagreement, not the probability of a weather event.
Wind: maximum daily speed at 10 m and prevailing direction of origin. Direction uses a speed-weighted circular calculation; missing or strongly opposing directions display a dash. 🥶: low below 0°C. 🥵: high above 30°C. 💨 in Conditions: wind at least 40 km/h or gusts at least 60 km/h.
Forecast data: Open-Meteo · NOAA / ECMWF / ECCC.