Semily 7-Day Snow Forecast

Semily Long-Range Snow Forecast

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Long-Range Snow Forecast for Semily

This is the Long-range (10, 14 and 45 day)Snow Forecast for Semily from 16 February.

Updated 16 February 2026 07:41 UTC.

For Forecast detail, see below.

Semily Snow Forecast Highlights

When will there be fresh snow in Semily?

Semily Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (375m)
Next Snow Expected	16 February
Next Snow Amount	2cm 1in
Next 48 Hours	4cm 2in
Next 7 Days	6cm 2in

Long-range Snow Outlook for Semily

Snowfall

Snow Line

6cm 2in New Snow

Snow falling to resort level ( 300m 984ft ).

Semily has up to 6cm 2in new snow forecast in the next 14 days.*
ECMWF IFS - at altitude

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Semily 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 Semily from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Mon 16	2cm 1in New Snow Light snow. Snow falling to resort level ( 300m 984ft ).	Max 0℃ 31°F Min -6℃ 21°F
Tue 17	2cm 1in New Snow Light snow showers. Snow falling to resort level ( 300m 984ft ).	Max 2℃ 35°F Min -2℃ 29°F
Wed 18	1cm New Snow Heavy snow showers. Snow falling to resort level ( 300m 984ft ).	Max 2℃ 35°F Min -3℃ 26°F
Thu 19	Cloudy.	Max 2℃ 35°F Min -4℃ 25°F
Fri 20	Cloudy.	Max -2℃ 28°F Min -9℃ 15°F
Sat 21	1cm New Snow Cloudy. Snow falling to resort level ( 300m 984ft ).	Max 3℃ 37°F Min -10℃ 14°F
Sun 22	Drizzle.	Max 7℃ 44°F Min 3℃ 38°F

This Snow Forecast for Semily, Czech Republic 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 Semily, 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.

Semily Snow Forecast updated at 07:41 UTC, next update expected 13:00 UTC.

Ensemble forecast for Semily, Czech Republic at 300m

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 Forecast near Semily

Snow Forecasts for Ski Resorts near Semily
Ski Area	48 Hr	7 Day
Rokytnice Nad Jizerou	10cm 4in	27cm 11in
Strázné	8cm 3in	13cm 5in
Vrchlabí	9cm 3in	10cm 4in
Harrachov	12cm 5in	18cm 7in
Korenov	12cm 5in	17cm 7in
Jested	8cm 3in	11cm 4in

Snow Reliability

Semily has a reliable snow record, typically boasting a snow depth of 60-100 cm during peak season. With consistent snowfall from December to March, it's advisable to check the latest snow conditions on J2Ski for current updates.

Off-Piste Safety in Semily

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