Giswil 7-Day Snow Forecast

Giswil Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

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Updated 01 September 2026 19:49 NZST

Long-Range Snow Forecast for Giswil

Long-range (14 to 45 days) from 1 September.

For Forecast detail, see below.

Giswil Snow Forecast Highlights

When will there be fresh snow in Giswil?

Giswil Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,165m)
Next Snow?
There is no snow currently in the forecast for Giswil.
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Long-range Snow Outlook for Giswil

Snowfall

Snow Line

Max 35℃
Min 11℃

Snow unlikely

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Giswil Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Giswil from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 01	Clear sky at altitude, fair below.	Max 25℃ Min 12℃
Wed 02	Cloudy.	Max 27℃ Min 11℃
Thu 03	Clear sky.	Max 27℃ Min 11℃
Fri 04	Clear sky.	Max 32℃ Min 14℃
Sat 05	Clear sky.	Max 31℃ Min 18℃
Sun 06	Clear sky.	Max 35℃ Min 17℃
Mon 07	Fair.	Max 30℃ Min 19℃

This Snow Forecast for Giswil, Switzerland gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Giswil, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Giswil Snow Forecast updated at 19:49 NZST, next update expected 01:00 NZST.

Ensemble forecast for Giswil, Switzerland at 480m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Reliability

Giswil typically enjoys reliable snowfall throughout the season, with average snow depths around 100 cm at peak times. For the latest snow reports and conditions, check J2Ski for up-to-date information.

Off-Piste Safety in Giswil

Before skiing or snowboarding off-piste in Giswil, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.