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Antuco ski resort
Tier A — Prime El Niño terrain

South America

Antuco Snow Forecast

60

Superb · 2026 season average

Projected to open June 2027 · average of 105 verified open days

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

Projected to open Jun 2027 — closed October 15

Weather data is still collected for informational purposes.

Last Snowfall

Oct 23

8d ago

Past 24 Hours

0cm

Past 48 Hours

0cm

Past 10 Days

4cm

7-Day Forecast

3cm

Snow Depth

--

🎿

Powder Days

51

2026 season

☀️

Bluebird Days

3

2026 season

Updated: Oct 31, 12:02 AM•Weather at base: 1,400m
SnowSure™ Score2026 season
60

Superb

2026 season average

Antuco is projected to open June 2027. Last season it averaged 60.2 across 105 verified open days.

Best months to book: August, September, July. Best weeks: 31 Jul–6 Aug, 21 Aug–27 Aug, 7 Aug–13 Aug.3Jul1Aug2SepOctOpened 3 JulClosed 15 Oct

Best months to book

  1. #1August146cm avg · last season 68.2
  2. #2September79cm avg · last season 64.9
  3. #3July139cm avg · last season 47.7

Best weeks to book

  1. #1 31 Jul – 6 Aug · last season 76.3
  2. #2 21 Aug – 27 Aug · last season 67.6
  3. #3 7 Aug – 13 Aug · last season 64.3

Ranked on 25% last season's SnowSure score (2026) · 75% 30-year snowfall and base-depth record. Last season's strongest fortnight was 20 Sep – 3 Oct. One season describes what happened, not what to expect. The live score returns when the lifts turn.

Snow Summary

Updated Oct 31 at 12:02 AM

866cm
Season
4cm
Past 10 days48H 0cm · 24H 0cm
0cm
Today
3cm
Next 6 days
Days 8–14 · Pro
0
1
3
Seasontotal
Wed28
Thu29
14 daystotal
—
—
—
—
3
—
—
—
—
—
—
—
—
—
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 (1,625m) reached us: past snow shown is the model's estimate at the summit.

Hourly Forecast

30 Fri
11° / -3°
31 Sat
9° / 0°
1 Sun
5° / 0°
2 Mon
9° / -2°
3 Tue
3° / -1°
4 Wed
10° / -4°
5 Thu
12° / -2°
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight6 Fri7 Sat8 Sun9 Mon10 Tue11 Wed12 Thu
Conditions☀️☁️🌤️⛅🌧️☁️🌧️🌧️🌧️🌤️⛅☁️🌧️🌧️⛅☀️☀️☀️☀️🌤️🌤️
clearcloudymostly clearsome cloudslight drizzlecloudylight drizzlelight drizzlelight drizzlemostly clearsome cloudscloudylight drizzlelight drizzlesome cloudsclearclearclearclearmostly clearmostly clear
Mid-mountain1,625 mModeled
Temp°C8°15°8°8°12°6°5°8°5°5°10°4°3°6°3°5°12°4°6°10°4°
Feels like°C3°11°1°3°8°1°1°4°1°1°8°0°-2°0°-1°0°10°-1°3°11°1°
Snowcm············1.50.6···0.1···
Precipmm···0.12.65.61.60.82.3·0.10.28.64.32.2··0.1·0.71.5
Windkm/h3643857853126131772832103
Summit1,850 mModeled
Temp°C7°14°6°7°11°5°3°6°4°4°9°2°1°4°2°3°10°2°4°9°2°
Feels like°C1°10°0°2°6°-1°-1°2°-1°-1°6°-2°-4°-1°-2°-1°9°-2°1°9°0°
Snowcm············4.60.21··0.1··0.2
Precipmm···0.12.65.61.60.82.3·0.10.28.64.32.2··0.1·0.71.5
Windkm/h3643857853126131772832103
Base1,400 mModeled
Temp°C10°17°9°10°14°8°6°9°7°6°12°5°4°7°5°6°13°5°7°12°5°
Feels like°C5°13°3°5°10°3°3°6°3°2°9°1°0°2°1°2°12°1°5°13°3°
Snowcm·····················
Precipmm···0.12.65.61.60.82.3·0.10.28.64.32.2··0.1·0.71.5
Windkm/h3643857853126131772832103
Humidity%614887817595927895885992928294715288654884
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 Antuco, 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 Antuco (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

Antuco El Niño rank & forecast

Antuco ranks #42 of 488 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).

#42 of 488Tier 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), Antuco averaged +13% versus its own 30-year snowfall baseline. The pattern has historically been a friend here. With a record-strength event forecast for winter 2026, Antuco sits on the favorable side of the ledger. Analog winters: '97-98 +3%, '15-16 +3%, '23-24 +32%. A pattern, not a promise.

'97-98 +3%'15-16 +3%'23-24 +32%

In-season scorecard

Predicted signal

+13%

Measured to date

+62%

Season total

866 cm

Vs predicted

+49%

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 Antuco, ERA5 season snowfall median was 535 cm (211 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

535cm

5 El Niño winters · 3% above median

All-season median

521cm

Across 30 ERA5 seasons (2026)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent5535cm437cm – 657cm2023, 2015, 2009, 2002, 1997
La Niña4555cm450cm – 625cm2022, 2010, 1999, 1998
ENSO-neutral21501cm447cm – 648cm2025, 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 Antuco

How much snow is Antuco getting this week?
The SnowSure™ blend forecasts about 3 cm (1 in) of snow at Antuco over the next 7 days.
What is the 14-day snow forecast for Antuco?
The full 14-day forecast for Antuco — 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 Antuco?
We verify every forecast against what actually fell and publish the results — see our forecast verification pages for model-by-model accuracy, updated continuously.