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Grand Massif ski resort
Tier C — ENSO-proof

📷 Grand Massif

Europe

Grand Massif

Closed for the season

Season ended April 19, 2026

Conditions data updated Fri, Aug 28, 10:02 AM UTC · informational only

Closed for the season — closed April 19

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

0.1cm

Snow Depth

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🎿

Powder Days

7

2026–27 season

☀️

Bluebird Days

1

2026–27 season

Updated: Aug 28, 10:02 AM•Weather at base: 700m

Overview

Grand Massif is a ski resort in Europe, France, currently closed for the season (Season ended April 19, 2026). Conditions last updated 2026-08-28 10:02 UTC.

Resort Guide

Grand Massif is a major ski resort located in the French Alps, connecting five villages—Flaine, Les Carroz, Morillon, Samoëns, and Sixt. The resort offers 139 slopes across 265 kilometers of skiable terrain, catering to all levels with a mix of wide open runs and forested trails. Grand Massif is known for its panoramic views of Mont Blanc, modern lift infrastructure, and a relaxed, family-friendly atmosphere. Signature experiences include snow parks, dedicated beginner zones, and easy access to authentic alpine villages.

Resort Info

Summit2500m
Base700m
Vertical1800m
Lifts62
Runs64
Skiable Area1618 acres
Average snowfall135 inches / 342 cm
CountryFrance
Visit Resort Website →Follow on Instagram →

Season dates

Season endedApril 19, 2026
Projected openingDecember 14, 2026

Future dates are operator estimates and may change.

Ski passes

No ski pass found

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

Top Après Ski

Le White Pub – A popular après-ski spot in Flaine, Le White Pub is renowned for its welcoming atmosphere, live music, and extensive selection of beers and cocktails, making it a favorite gathering place for skiers to unwind after a day on the slopes.

Snow Summary

2500mECMWF Model

Updated Aug 28, 2026 at 10:02 AM

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

Snowfall Forecast Maps

The Alps region

Current Conditions

Reported Fri, Aug 28, 10:02 AM UTC

Base

700m

Temp

20.2°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

0.1cm

Mid-Mountain

1600m

Temp

--°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

0.1cm

Summit

2500m

Temp

8.5°C

Wind

4km/h

Snow Depth

--

14-Day Forecast

0.1cm

El Niño Outlook · Winter 2026-27

Grand Massif El Niño rank & forecast

Grand Massif ranks #196 of 488 SnowSure resorts — Tier C, +1% in strong El Niño winters.

Tier C — ENSO-proof: Strong El Niño winters looked like a normal year here — within about ±3% of this resort’s own 30-year snowfall average. Not a jackpot, not a bust: a hedge if you’re planning around El Niño.

#196 of 488Tier C — ENSO-proof

Strong-event signal: +1% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Grand Massif averaged +1% versus its own 30-year snowfall baseline. El Niño has historically made little difference here — this is an ENSO-proof mountain, for winter 2026-27 as in past events. Analog winters: '97-98 0%, '15-16 +23%, '23-24 -18%. A pattern, not a promise.

'97-98 0%'15-16 +23%'23-24 −19%

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

Grand Massif Webcams

All Webcams

Resort Webcam

Resort Webcam

Resort Webcam

3 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 Grand Massif (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, 10:02 AM

Hourly Forecast Detail
 
Today
10 / 313.5mm
Sat, Aug 29
12 / 0
Sun, Aug 30
14 / 3
Mon, Aug 31
13 / 54.2mm
Tue, Sep 1
14 / 22.1mm
Wed, Sep 2
9 / 36.6mm
PeriodAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Snow (cm)000000000000000000
Precip (mm)2.492.10000000.62.11.500.31.82.42.12.1
Temp (°C)8973114713671275135595
Wind (km/h)273382262372352252
Gusts (km/h)494939213720183221264130254132222828

14-Day Snow Forecast by Model

Summit elevation (2500m)

ECMWF
0cm
GFS
0.2cm
GEM
0cm
JMA
0cm
ICON
0cm
Météo-Fr
0cm
SnowSure™
0.1cm

10-Day Forecast

Today

28

🌧️

9.9°

3.3°

8 km/h

Sat

29

☁️

11.7°

0°

8 km/h

Sun

30

🌤️

13.9°

2.7°

7 km/h

Mon

31

🌧️

12.5°

4.6°

8 km/h

Tue

1

🌧️

14°

1.7°

6 km/h

Wed

2

🌧️

9.3°

3.3°

6 km/h

Thu

3

⛅

12.2°

0.3°

6 km/h

Fri

4

☀️

15.9°

2.1°

6 km/h

Sat

5

☀️

18.8°

5.7°

6 km/h

Sun

6

🌤️

19.4°

6.9°

8 km/h

Summit elevation (2500m) • 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, 10:02 AM UTC

0cm

Season Total

This Season to Date

—

vs 5-Year Avg

Off-season · 517cm full-season avg

—

vs 30-Year Avg

Off-season · 542cm full-season avg

517cm

5-Yr Avg by Now

The last completed season totaled ~501.5 cm. That's 3% below the 5-year average (517 cm). Versus the 30-year baseline: 7% below the 30-year average (542 cm).

Grand Massif Snow History

Average annual snowfall is 544cm with an average of 106 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
November71.1cm14 days25cm56cm16.9cm
December100.6cm17 days79cm116cm20.4cm
January98.7cm17 days126cm159cm20.6cm
February86.6cm15 days160cm187cm19.3cm
March78.9cm16 days166cm192cm17.8cm
April52.7cm12 days133cm169cm13.7cm
May22.2cm7 days54cm104cm8.1cm

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 14, 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 Grand Massif, ERA5 season snowfall median was 522 cm (206 in), about 1% 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

522 cm

10 El Niño winters · 1% below median

All-season median

530 cm

Across 30 ERA5 seasons (2026-27)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent10522 cm475 cm – 540 cm2023, 2019, 2018, 2015, 2014, 2009
La Niña12594 cm459 cm – 659 cm2022, 2021, 2020, 2017, 2011, 2010
ENSO-neutral8532 cm402 cm – 651 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 Grand Massif

Where is Grand Massif?
Grand Massif is a ski resort in France.
How high is Grand Massif?
Grand Massif runs from a base elevation of 700 m (2,297 ft) to a summit of 2,500 m (8,202 ft), giving a vertical drop of 1,800 m (5,906 ft).
How big is Grand Massif?
Grand Massif has 1,618 acres (655 hectares) of skiable terrain, 64 marked runs and 62 lifts.
Which ski pass covers Grand Massif?
Grand Massif is on the No ski pass found. 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 Grand Massif?
Grand Massif 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 Grand Massif get in a typical season?
Grand Massif averages 135 inches / 342 cm of snowfall in a typical season. Any individual season can run well above or below that.
How will El Niño affect Grand Massif in winter 2026-27?
El Niño Signal Rank: #196 of 488 SnowSure resorts · Tier C · strong-event signal +1% vs its own 30-yr average. In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Grand Massif averaged +1% versus its own 30-year snowfall baseline. El Niño has historically made little difference here — this is an ENSO-proof mountain, for winter 2026-27 as in past events. Analog winters: '97-98 0%, '15-16 +23%, '23-24 -18%. A pattern, not a promise.