Tiirismaa 7-Day Snow Forecast

Tiirismaa Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 31 August 2026 12:40 PDT

Long-Range Snow Forecast for Tiirismaa

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

For Forecast detail, see below.

Tiirismaa Snow Forecast Highlights

When will there be fresh snow in Tiirismaa?

Tiirismaa Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (423ft)
Next Snow?
There is no snow currently in the forecast for Tiirismaa.

Long-range Snow Outlook for Tiirismaa

Snowfall

Snow Line

Max 68°F
Min 44°F

Snow unlikely

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Tiirismaa 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 Tiirismaa from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 01	Rain showers.	Max 68°F Min 56°F
Wed 02	Fair.	Max 67°F Min 52°F
Thu 03	Fair.	Max 65°F Min 50°F
Fri 04	Clear sky.	Max 62°F Min 46°F
Sat 05	Light drizzle.	Max 61°F Min 44°F
Sun 06	Light drizzle.	Max 61°F Min 48°F
Mon 07	Clear sky.	Max 61°F Min 47°F

No significant snowfall is forecast for this period.

This Snow Forecast for Tiirismaa, Finland 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 Tiirismaa, on any given trail 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.

Tiirismaa Snow Forecast updated at 12:40 PDT, next update expected imminently.

Ensemble forecast for Tiirismaa, Finland at 243ft

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

Tiirismaa enjoys reliable snow conditions, with an average depth of 100 cm during peak season. Regular snowfall and minimal snowmelt ensure excellent ski conditions, but it's best to check J2Ski for the latest updates.

Off-Piste Safety in Tiirismaa

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