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Grands Montets ski resort

Part of Chamonix · 12 ski areas

BréventFlégèreBalme – VallorcineAiguille du Midi+7 more
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Tier A — Prime El Niño terrain

📷 Grands Montets

Europe

Grands Montets

Off-season

Closed for the season · reopens Nov 28

Conditions data updated Fri, Aug 21, 04:04 PM UTC · informational only

Off-season

Weather data is still collected for informational purposes.

Last Snowfall

--

Past 24 Hours

0cm

Past 48 Hours

0cm

Past 10 Days

0cm

14-Day Forecast

17.1cm

Snow Depth

--

Updated: Aug 21, 4:04 PM•Weather at base: 1252m

Overview

Grands Montets is a ski resort in Europe, France, currently closed for the season (Closed for the season · reopens Nov 28). The 14-day ensemble forecast across seven weather models (ECMWF, GFS, GEM, JMA, ICON, Météo-France, Met Norway) calls for ~17 cm (6.7 in) of new snow. Conditions last updated 2026-08-21 16:04 UTC.

Resort Guide

Grands Montets is a renowned ski area located in the Chamonix Valley, France, offering high-altitude skiing with slopes ranging from 1,235 to 3,300 meters. The area is known for its expansive off-piste terrain, challenging runs, and panoramic views of the Mont Blanc massif. Grands Montets features modern lift infrastructure, a variety of pistes for advanced and expert skiers, and a vibrant alpine atmosphere, making it a prime destination for those seeking both adventure and exceptional mountain scenery.

Resort Info

Summit3275m
Base1252m
Vertical2023m
Lifts7
Runs17
Skiable Area4447.9 acres
Average snowfall378 inches / 960 cm
CountryFrance
Visit Resort Website →Follow on Instagram →View Trail Map →

Season dates

Projected openingNovember 28, 2026

Future dates are operator estimates and may change.

Ski passes

Ikon Pass

Ikon Pass

View resorts →
Mountain Collective

Mountain Collective

View resorts →

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

Top Après Ski

Les Marmottons – A classic après-ski bar at the base of Grands Montets, Les Marmottons is renowned for its welcoming atmosphere, hearty snacks, and lively terrace where skiers gather to unwind with drinks and enjoy mountain views after a day on the slopes.

Snow Summary

3275mECMWF Model

Updated Aug 21, 2026 at 4:04 PM

0cm
24h
17cm
Past 10d
14-Day Forecast
0
Prev10d
10.9
Now21
—
S22
—
S23
—
M24
—
T25
—
W26
—
T27
Past
Today
Forecast

Snowfall Forecast Maps

The Alps region

Current Conditions

Reported Fri, Aug 21, 04:04 PM UTC

Base

1252m

Temp

12.9°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

17.1cm

Mid-Mountain

2264m

Temp

--°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

17.1cm

Summit

3275m

Temp

-0.2°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

10.9cm

El Niño Outlook · Winter 2026-27

Grands Montets (Chamonix) El Niño rank & forecast

Grands Montets (Chamonix) ranks #17 of 152 SnowSure resorts — Tier A, +13% 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).

#17 of 152Tier A — Prime El Niño terrain

Strong-event signal: +13% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Grands Montets (Chamonix) averaged +13% versus its own 30-year snowfall baseline — one of the strongest positive El Niño signals we track. With NOAA forecasting a potentially record event for winter 2026-27, history says this is the winter to book Grands Montets (Chamonix) with confidence. Individual analog winters: '97-98 -23%, '15-16 -1%, '23-24 +62%. A lean, not a law — but the lean is firmly up.

'97-98 −23%'15-16 −1%'23-24 +62%

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

Grands Montets Webcams

All Webcams

Compagnie du Mont-Blanc / Skaping; OT Vallée de Chamonix

Compagnie du Mont-Blanc / Skaping; OT Vallée de Chamonix

Compagnie du Mont-Blanc / Skaping; OT Vallée de Chamonix

Compagnie du Mont-Blanc / Skaping; OT Vallée de Chamonix

4 webcams • 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 Grands Montets (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 21, 4:04 PM

Hourly Forecast Detail
 
Today
1 / -311.2cm15.9mm
Sat, Aug 22
3 / -50.2cm0.3mm
Sun, Aug 23
7 / -5
Mon, Aug 24
9 / -10.3mm
Tue, Aug 25
8 / 02.5cm3.6mm
Wed, Aug 26
11 / -1
PeriodAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Snow (cm)45.91.3000.2000000002.5000
Precip (mm)5.78.41.8000.3000000.3003.6000
Temp (°C)-10-1-32-206-13912724103
Wind (km/h)343254253235363223
Gusts (km/h)303337282831272929222335594344252529

14-Day Snow Forecast by Model

Summit elevation (3275m)

ECMWF
10.9cm
GFS
29.8cm
GEM
0cm
JMA
1.9cm
ICON
0.1cm
Météo-Fr
0.1cm
SnowSure™
17.1cm

10-Day Forecast

Today

21

🌧️

0.5°

-2.6°

10.9cm

4 km/h

Sat

22

🌧️

2.8°

-4.7°

6 km/h

Sun

23

⛅

6.5°

-5.4°

6 km/h

Mon

24

🌧️

9.2°

-1.2°

9 km/h

Tue

25

🌧️

7.8°

-0.2°

8 km/h

Wed

26

⛅

10.5°

-0.6°

8 km/h

Thu

27

🌧️

5°

0.7°

9 km/h

Fri

28

🌧️

5.6°

-1.9°

7 km/h

Sat

29

🌧️

2.5°

-3.7°

8 km/h

Sun

30

☁️

4.8°

-4.7°

5 km/h

Summit elevation (3275m) • ECMWF model

Season vs Historic

Updated Fri, Aug 21, 04:04 PM UTC

0cm

Season Total

This Season to Date

—

vs 5-Year Avg

Off-season · 634cm full-season avg

—

vs 30-Year Avg

Off-season · 524cm full-season avg

634cm

5-Yr Avg by Now

The last completed season totaled ~507.2 cm. That's 20% below the 5-year average (634 cm). Versus the 30-year baseline: 3% below the 30-year average (524 cm).

Grands Montets Snow History

Average annual snowfall is 622cm with an average of 133 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
November84.1cm17 days483cm517cm18.8cm
December108.2cm18 days539cm576cm21cm
January98.8cm17 days578cm614cm20.2cm
February82.2cm16 days608cm637cm17.3cm
March82.4cm18 days620cm644cm17.4cm
April61.4cm16 days612cm637cm13.4cm
May45.1cm12 days561cm603cm11.7cm

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 Nov 28, 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 Grands Montets, ERA5 season snowfall median was 511 cm (201 in), about 13% 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

511 cm

10 El Niño winters · 13% below median

All-season median

589 cm

Across 30 ERA5 seasons (2026-27)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent10511 cm484 cm – 737 cm2023, 2019, 2018, 2015, 2014, 2009
La Niña12617 cm525 cm – 737 cm2022, 2021, 2020, 2017, 2011, 2010
ENSO-neutral8599 cm536 cm – 648 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 Grands Montets

Where is Grands Montets?
Grands Montets is a ski resort in France.
How high is Grands Montets?
Grands Montets runs from a base elevation of 1,252 m (4,108 ft) to a summit of 3,275 m (10,745 ft), giving a vertical drop of 617 m (2,024 ft).
How big is Grands Montets?
Grands Montets has 4,448 acres (1,800 hectares) of skiable terrain, 17 marked runs and 7 lifts.
Which ski pass covers Grands Montets?
Grands Montets is on the Ikon Pass and Mountain Collective. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.
How much snow does Grands Montets get in a typical season?
Grands Montets averages 378 inches / 960 cm of snowfall in a typical season. Any individual season can run well above or below that.
How will El Niño affect Grands Montets in winter 2026-27?
El Niño Signal Rank: #17 of 152 SnowSure resorts · Tier A · strong-event signal +13% vs its own 30-yr average. In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Grands Montets (Chamonix) averaged +13% versus its own 30-year snowfall baseline — one of the strongest positive El Niño signals we track. With NOAA forecasting a potentially record event for winter 2026-27, history says this is the winter to book Grands Montets (Chamonix) with confidence. Individual analog winters: '97-98 -23%, '15-16 -1%, '23-24 +62%. A lean, not a law — but the lean is firmly up.