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Cerro Perito Moreno ski resort
Tier C — ENSO-proof

South America

Cerro Perito Moreno Snow Forecast

39

Solid · 2026 season average

Projected to open June 2027 · average of 68 verified open days

Best months to book: August, September, October · last season + 30-yr record

Projected to open Jun 2027 — closed October 12

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

7-Day Forecast

2cm

Snow Depth

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🎿

Powder Days

3

2026 season

Updated: Oct 30, 10:03 PM•Weather at base: 915m
SnowSure™ Score2026 season
39

Solid

2026 season average

Cerro Perito Moreno is projected to open June 2027. Last season it averaged 38.6 across 68 verified open days.

Best months to book: August, September, October. Best weeks: 20 Aug–26 Aug, 6 Aug–12 Aug, 13 Aug–19 Aug.1Aug2Sep3OctOpened 6 AugClosed 12 Oct

Best months to book

  1. #1August66cm avg · last season 51.3
  2. #2September30cm avg · last season 36
  3. #3October21cm avg · last season 17.9

Best weeks to book

  1. #1 20 Aug – 26 Aug · last season 58.4
  2. #2 6 Aug – 12 Aug · last season 50.4
  3. #3 13 Aug – 19 Aug · last season 41.7

Ranked on 25% last season's SnowSure score (2026) · 75% 30-year snowfall and base-depth record. Last season's strongest fortnight was 19 Aug – 1 Sep. One season describes what happened, not what to expect. The live score returns when the lifts turn.

Snow Summary

Updated Oct 30 at 10:03 PM

430cm
Season
0cm
Past 10 days48H 0cm · 24H 0cm
0cm
Today
2cm
Next 6 days
Days 8–14 · Pro
Seasontotal
Wed28
Thu29
14 daystotal
—
—
—
0
1
—
1
—
—
—
—
—
—
—
TueOct 20
Wed21
Thu22
Fri23
Sat24
Sun25
Mon26
Tue27
TODAY30
Sat31
SunNov 1
Mon2
Tue3
Wed4
Thu5
Fri6
Sat7
Sun8
Mon9
Tue10
Wed11
Thu12
Freezing line
Snow qualityLight· bestAverage· okayHeavy· wet, skis heavy

Days 8–14 and every model are in SnowSure Pro.Unlock with Pro

No measurement at mid height (1,566m) reached us: past snow shown is the model's estimate at the summit.

Hourly Forecast

30 Fri
10° / -1°
31 Sat
8° / -3°
1 Sun
3° / -4°
2 Mon
7° / -6°
3 Tue
2° / -6°
4 Wed
3° / -5°
5 Thu
6° / -4°
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight6 Fri7 Sat8 Sun9 Mon10 Tue11 Wed12 Thu
Conditions☁️☀️⛅☁️🌤️⛅🌧️🌤️⛅☁️🌤️🌤️🌧️🌧️⛅☁️☁️☁️☁️🌧️🌧️
cloudyclearsome cloudscloudymostly clearsome cloudsdrizzlemostly clearsome cloudscloudymostly clearmostly clearlight drizzlelight drizzlesome cloudscloudycloudycloudycloudylight drizzlelight drizzle
Mid-mountain1,566 mModeled
Temp°C6°13°7°5°11°5°2°5°2°1°7°2°1°6°1°1°7°1°2°6°2°
Feels like°C4°11°4°2°8°1°-3°2°-2°-2°6°-2°-1°2°-2°-1°2°-1°-1°5°1°
Snowcm······0.2····0.30.1·0.5···1.3·0.4
Precipmm······1.70.30.10.10.31.20.40.40.80.10.20.32.60.31.0
Windkm/h385513511169611751278127855
Summit2,216 mModeled
Temp°C2°9°3°1°7°0°-3°1°-2°-3°3°-3°-3°1°-3°-3°3°-3°-2°2°-2°
Feels like°C-1°6°0°-3°3°-4°-8°-3°-6°-7°1°-7°-6°-2°-7°-6°-2°-6°-5°0°-4°
Snowcm······1.20.2·0.1·0.80.30.10.60.10.10.21.70.20.7
Precipmm······1.70.30.10.10.31.20.40.40.80.10.20.32.60.31.0
Windkm/h385513511169611751278127855
Base915 mModeled
Temp°C10°17°11°9°15°9°6°10°6°6°12°6°5°10°5°5°12°5°6°10°6°
Feels like°C9°16°9°7°13°6°2°7°3°3°10°3°3°7°3°3°7°4°4°10°6°
Snowcm·····················
Precipmm······1.50.20.10.10.11.00.40.40.80.10.20.32.20.30.7
Windkm/h385513511169611751278127855
Humidity%814073803977845172743673755677715279785778
0°C linem—————————————————————
Sunhours

Freeze line is the height where rain turns to snow. Plain: straight from the models. Marked ○: estimated from temperature. Sun is hours of actual sunshine, not day length; blank means we have no reading.

Forecast Range · SnowSure Pro

Every model for Cerro Perito Moreno, side by side for 14 days

Where the models agree, where they split, and which one has been most accurate here.

Unlock with Pro

SnowSure™ blend — verified model weighting

The black line is not a simple average. For Cerro Perito Moreno (andes), 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 →

Snowfall Forecast Maps

Andes (Chile & Argentina) region

14 Day map is in SnowSure ProUnlock with Pro

El Niño Outlook · Winter 2026

Cerro Perito Moreno El Niño rank & forecast

Cerro Perito Moreno ranks #234 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.

#234 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), Cerro Perito Moreno 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 as in past events. Analog winters: '97-98 -27%, '15-16 +15%, '23-24 +8%. A pattern, not a promise.

'97-98 −27%'15-16 +15%'23-24 +8%

In-season scorecard

Predicted signal

−1%

Measured to date

+72%

Season total

430 cm

Vs predicted

+73%

Predicted signal vs measured season-to-date against this resort’s own climatology.

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 →

ENSO seasonal analog

History · not a forecast

In 5 past El Niño winters at Cerro Perito Moreno, ERA5 season snowfall median was 286 cm (113 in), about 3% above 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

JJA 2026 · ANOM +1.8°C

Analog season median

286cm

5 El Niño winters · 3% above median

All-season median

278cm

Across 30 ERA5 seasons (2026)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent5286cm279cm – 304cm2023, 2015, 2009, 2002, 1997
La Niña4269cm222cm – 333cm2022, 2010, 1999, 1998
ENSO-neutral21273cm201cm – 297cm2025, 2024, 2021, 2020, 2019, 2018

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.

Local Reports

0 reports

How accurate is this forecast?

We verify every forecast against what actually fell — see the model-by-model results.

→

Frequently asked questions about Cerro Perito Moreno

How much snow is Cerro Perito Moreno getting this week?
The SnowSure™ blend forecasts about 2 cm (1 in) of snow at Cerro Perito Moreno over the next 7 days.
What is the 14-day snow forecast for Cerro Perito Moreno?
The full 14-day forecast for Cerro Perito Moreno — the SnowSure™ blend and every model we track, day by day — is part of SnowSure Pro. The first 7 days are free on this page.
How accurate are SnowSure forecasts for Cerro Perito Moreno?
We verify every forecast against what actually fell and publish the results — see our forecast verification pages for model-by-model accuracy, updated continuously.