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Les Trois Vallées ski resort
Epic PassView resorts
Tier A — Prime El Niño terrain

📷 Les Trois Vallées

Europe

Les Trois Vallées

Closed for the season

Season ended April 17, 2026

Conditions data updated Fri, Aug 28, 10:03 AM UTC · informational only

Closed for the season — closed April 17

Weather data is still collected for informational purposes.

Last Snowfall

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Past 24 Hours

0cm

Past 48 Hours

0cm

Past 10 Days

0cm

14-Day Forecast

1cm

Snow Depth

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🎿

Powder Days

14

2026–27 season

☀️

Bluebird Days

1

2026–27 season

Updated: Aug 28, 10:03 AM•Weather at base: 183m

Overview

Les Trois Vallées is a ski resort in Europe, France, currently closed for the season (Season ended April 17, 2026). The 14-day ensemble forecast across seven weather models (ECMWF, GFS, GEM, JMA, ICON, Météo-France, Met Norway) calls for ~1 cm (0.4 in) of new snow. Conditions last updated 2026-08-28 10:03 UTC.

Resort Guide

Les Trois Vallées is a vast ski area located in the French Alps, encompassing eight interconnected resorts and offering 600 kilometers of ski runs. Renowned as the world’s largest ski domain, it features a diverse range of slopes for all abilities, modern lift infrastructure, and direct access to high-altitude skiing. The area is known for its scenic alpine landscapes, vibrant village atmospheres, and a wide array of amenities including ski schools, mountain restaurants, and après-ski options. Its seamless connectivity and extensive terrain make it a premier destination for both recreational and advanced skiers.

Resort Info

Summit985m
Base183m
Vertical802m
Lifts161
Runs334
Skiable Area1482.6 acres
Average snowfall143 inches / 364 cm
CountryFrance
Visit Resort Website →Follow on Instagram →

Season dates

Season endedApril 17, 2026
Projected openingDecember 5, 2026

Future dates are operator estimates and may change.

Ski passes

Epic Pass

Epic Pass

View resorts →

Access tiers change by season — confirm benefits on the pass operator's site.

Top Après Ski

La Folie Douce – Renowned for its energetic open-air parties, live music, and DJ performances right on the slopes, La Folie Douce in Les Trois Vallées offers a vibrant après-ski scene with a festive atmosphere and panoramic mountain views, making it a must-visit for those seeking lively entertainment after a day on the snow.

Snow Summary

985mECMWF Model

Updated Aug 28, 2026 at 10:03 AM

0cm
24h
1cm
Past 10d
14-Day Forecast
0
Prev10d
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Now28
—
S29
—
S30
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M31
—
T1
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W2
—
T3
Past
Today
Forecast

Snowfall Forecast Maps

The Alps region

Current Conditions

Reported Fri, Aug 28, 10:03 AM UTC

Base

183m

Temp

25.4°C

Wind

8.6km/h

Snow Depth

--

14-Day Forecast

1cm

Mid-Mountain

1915m

Temp

--°C

Wind

9km/h

Snow Depth

--

14-Day Forecast

1cm

Summit

985m

Temp

8.3°C

Wind

8.6km/h

Snow Depth

--

14-Day Forecast

0.9cm

El Niño Outlook · Winter 2026-27

Les Trois Vallées El Niño rank & forecast

Les Trois Vallées ranks Under review SnowSure resorts — Tier A, +9% in strong El Niño winters.

Tier A — Prime El Niño terrain: Historically snowed much more than normal in strong El Niño winters (≥ +8% vs this resort’s own 30-year average).

Under reviewTier A — Prime El Niño terrain

Strong-event signal: +9% vs this resort's 30-yr avg

This resort carries no separate rank: its 30-year record is identical to val-thorens, which is the ranked entry for this measurement. At ~31km resolution the reanalysis cannot resolve them as different mountains, so publishing both would be publishing one number twice.

'97-98 −17%'15-16 −4%'23-24 +47%

Signal = average snowfall in the three strongest El Niño winters since 1996 ('97-98, '15-16, '23-24) vs this resort's own 30-year ERA5 baseline. n=3 — a lean, not a law. Updated monthly against measured snowfall Dec–Mar.

Full El Niño report →

Live Conditions

Les Trois Vallées Webcam

All Webcams

Skaping

1 webcam • Click to expand

Local Reports

0 reports
SnowSure™ Forecast Range

Daily Snowfall Forecast by Model

Black line = verified SnowSure™ blend (not a simple average). Weights update weekly from measured snowfall at SNOTEL stations and resort reports.

SnowSure™ blend — verified model weighting

The black line is not a simple average. For Les Trois Vallées (alps), we combine seven global weather models using weights learned from daily forecast verification — comparing each model's prediction to measured snowfall (SNOTEL, resort reports, ERA5).

  • 1.Horizon buckets: days 1–3, 4–7, and 8–14 each get separate weights — short-range skill differs from long-range.
  • 2.Regional calibration: weights come from verified error in this geography (Rockies, Alps, Japan, etc.), recalculated weekly.
  • 3.Ground truth only: we never grade a forecast against another model — only against measured snow.

Building verification history for this resort.

How we verify forecasts →

Hourly Forecast Detail

AM / PM / Night breakdown with wind and freezing level

NWP models refresh up to 4× daily · Last synced Aug 28, 10:03 AM

Hourly Forecast Detail
 
Today
10 / 16.6mm
Sat, Aug 29
9 / -3
Sun, Aug 30
10 / -1
Mon, Aug 31
9 / 10.1cm2.1mm
Tue, Sep 1
12 / -53mm
Wed, Sep 2
7 / 00.8cm4.5mm
PeriodAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Snow (cm)000000000000.10000.700.1
Precip (mm)1.51.53.600000001.20.900.92.11.81.21.5
Temp (°C)69408231033930102162
Wind (km/h)795273262271361162
Gusts (km/h)686951203425153219234024244232233532

14-Day Snow Forecast by Model

Summit elevation (985m)

ECMWF
0cm
GFS
1.7cm
GEM
0cm
JMA
0.8cm
ICON
0cm
Météo-Fr
0cm
SnowSure™
1cm

10-Day Forecast

Today

28

🌧️

9.6°

1.1°

12 km/h

Sat

29

⛅

8.8°

-2.9°

9 km/h

Sun

30

🌤️

10.4°

-0.7°

7 km/h

Mon

31

🌧️

8.9°

0.9°

8 km/h

Tue

1

🌧️

11.5°

-4.9°

9 km/h

Wed

2

🌧️

7°

-0.2°

8 km/h

Thu

3

☁️

9°

-5.9°

8 km/h

Fri

4

☀️

13.8°

-0.3°

6 km/h

Sat

5

☀️

15.9°

2.7°

7 km/h

Sun

6

☀️

16.7°

2.4°

10 km/h

Summit elevation (985m) • ECMWF model

Avalanche

No bulletin for this mountain

No official warning service is mapped for this resort’s country yet (v1 covers the United States, Canada and Switzerland). A bulletin may still be published locally.

SnowSure relays the official avalanche bulletin and does not issue avalanche forecasts. Read the full bulletin at the issuer’s link and make your own terrain decisions. Not a substitute for avalanche education, equipment, or local knowledge.

Season vs Historic

Updated Fri, Aug 28, 10:03 AM UTC

0cm

Season Total

This Season to Date

—

vs 5-Year Avg

Off-season · 433cm full-season avg

—

vs 30-Year Avg

Off-season · 437cm full-season avg

433cm

5-Yr Avg by Now

The last completed season totaled ~381 cm. That's 12% below the 5-year average (433 cm). Versus the 30-year baseline: 13% below the 30-year average (437 cm).

Les Trois Vallées Snow History

Average annual snowfall is 526cm with an average of 130 snowfall days per season. The table below shows monthly averages across 30 seasons of archive data (modeled snowpack at mid-elevation).

Average monthly snowfall history
MonthAvg SnowfallSnowfall DaysAvg Base DepthMax Base DepthBiggest Snowfall
November77.1cm17 days40cm75cm17.5cm
December92.4cm18 days98cm130cm18.9cm
January86.2cm17 days139cm169cm17.8cm
February67.7cm16 days165cm191cm15.5cm
March71.5cm18 days177cm200cm16.3cm
April53.9cm16 days162cm192cm11.9cm
May34.6cm12 days96cm147cm9cm

Source: SnowSure archive · Open-Meteo ERA5 reanalysis at mid-elevation. Depth is modeled, not resort-reported.

Season at a Glance

Next season(2026-27)

Opens Dec 5, 2026

Multi-season averages will appear once SnowSure has tracked more than one full season.

ENSO seasonal analog

History · not a forecast

In 10 past El Niño winters at Les Trois Vallées, ERA5 season snowfall median was 460 cm (181 in), about 9% below this resort’s long-term median. This is a historical analog from reanalysis — not a prediction of this winter’s storm track.

Prevailing ONI

El Niño

MJJ 2026 · ANOM +1.39°C

Analog season median

460 cm

10 El Niño winters · 9% below median

All-season median

505 cm

Across 30 ERA5 seasons (2026-27)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent10460 cm415 cm – 631 cm2023, 2019, 2018, 2015, 2014, 2009
La Niña12513 cm475 cm – 585 cm2022, 2021, 2020, 2017, 2011, 2010
ENSO-neutral8526 cm493 cm – 549 cm2025, 2024, 2016, 2013, 2012, 2003

Season snowfall from Open-Meteo ERA5 reanalysis (~9 km). ENSO phase from NOAA CPC Oceanic Niño Index. Relative phase differences are more trustworthy than absolute cm totals. Source: NOAA CPC Oceanic Niño Index + Open-Meteo ERA5 via SnowSure season archive.

Best Months to Visit

February

Peak Season

January

Peak Season

March

Good

December

Good

Note: Based on typical ski season patterns for this region.

Back to All Destinations

Frequently asked questions about Les Trois Vallées

Where is Les Trois Vallées?
Les Trois Vallées is a ski resort in France.
How high is Les Trois Vallées?
Les Trois Vallées runs from a base elevation of 183 m (600 ft) to a summit of 985 m (3,232 ft), giving a vertical drop of 802 m (2,631 ft).
How big is Les Trois Vallées?
Les Trois Vallées has 1,483 acres (600 hectares) of skiable terrain, 334 marked runs and 161 lifts.
Which ski pass covers Les Trois Vallées?
Les Trois Vallées is on the Epic Pass. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.
When is ski season at Les Trois Vallées?
Les Trois Vallées typically operates from December to April. Exact opening and closing dates shift each year with snowfall — check the resort's current season dates before booking.
How much snow does Les Trois Vallées get in a typical season?
Les Trois Vallées averages 143 inches / 364 cm of snowfall in a typical season. Any individual season can run well above or below that.
How will El Niño affect Les Trois Vallées in winter 2026-27?
El Niño Signal: under review — this station's record has an era discontinuity.. This resort carries no separate rank: its 30-year record is identical to val-thorens, which is the ranked entry for this measurement. At ~31km resolution the reanalysis cannot resolve them as different mountains, so publishing both would be publishing one number twice.