GFS
USA · NOAA / NCEPGlobal Forecast System: a numerical model that simulates atmospheric physics.
Destination photograph · Val Gardena Arno Senoner · Unsplash License · 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 |
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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
Dolomite skylines, welcoming mountain huts and access to the Sellaronda circuit.
Ortisei, Santa Cristina and Selva offer different bases. Check which lift connections are closest to your accommodation before planning a full circuit.
January–March 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.
Dolomite panoramas, leisurely mountain lunches and memorable ski circuits. Choose your base carefully: a regional pass does not mean every area is connected by lifts.
Val Gardena · Dolomites, Italy. Dolomite skylines, welcoming mountain huts and access to the Sellaronda circuit. Ortisei, Santa Cristina and Selva offer different bases. Check which lift connections are closest to your accommodation before planning a full circuit.
Ortisei is approximately 7 km to the west of this point. Compare the two forecasts if your day includes both locations. This is a straight-line distance, not a road route.
For skiing and snowboarding, distinguish predicted new snowfall from measured snow depth on pistes. Compare wind, temperatures and the selected forecast elevation; a village point is not a lift station or summit. For summer hiking and sightseeing, the same hourly outlook helps you plan around cloud and rain. Check current piste, lift and route updates with the operator.
Around the June solstice, daylight is approximately 15 h 50 min; around the December solstice, 8 h 30 min. This helps plan the time available for an outing or photography. These are approximate astronomical daylight lengths, not sunshine forecasts; cloud and the local horizon can reduce usable light.
Use the 2016–2025 weather history below to compare months using temperature, rain and modelled snowfall. It is a ten-year reanalysis summary, not a 30-year climate normal or a record from a weather station.
Distances are in a straight line. Remote locations may have distant comparison points. These links do not define a route, lift connection or border crossing.
More weather destinations in Italy
Sources: Destination information · Daylight calculation reference
A nearby listed settlement is Selva, approximately 1 km from the forecast point in a straight line. GeoNames lists a population of 1,601 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 46.5570, 11.7590, using the Europe/Rome time zone. The nearby ski-area links below let you compare conditions across the region.
The shortlist
Ladin villages, inviting pistes and mountain food in the heart of the Dolomites.
Dramatic limestone scenery and a stylish town surrounded by distinct ski sectors.
Broad alpine slopes on the Italian side of the Matterhorn, known locally as Monte Cervino.
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.
The Source control selects data for widgets, weather maps and forecast tables. Xionia shows the provider used and the loading progress.
Open-Meteo is a weather data service. It distributes forecasts from weather centres including NOAA, ECMWF and Environment and Climate Change Canada. Each model calculates how the atmosphere may evolve in its own way. Xionia compares the available values for each day and variable using the rules described in the forecast methodology.
NOAA is the US National Oceanic and Atmospheric Administration. Its Global Forecast System, GFS, produces worldwide forecasts. The direct Xionia backup uses a GFS product on a 0.5° grid with 6-hour steps. This describes the product loaded here; other GFS products have different resolutions. Daily values are estimates derived from these steps, and snowfall in centimetres is unavailable from this backup.
Automatic tries Open-Meteo first. If a supported forecast request fails, it switches to NOAA. Choosing Open-Meteo or NOAA GFS selects that particular source. The NOAA backup downloads larger files, so its first load may take longer and use more mobile data.
The provider, available model, grid and forecast issue time can change the values. A dash means missing data. Model agreement is not a percentage probability, and days 8–14 have greater uncertainty. Observations from the Agios Stefanos station, historical ERA5 reanalysis and the daily FWI index have their own sources and are unaffected by this control.
Official documentation: Open-Meteo · NOAA / NCEP · GFS