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Roundhill ski resort
Tier E — Deep timing play — aim late winter

Oceania

Roundhill Snow Forecast

33

Solid · 2026 season average

Projected to open June 2027 · average of 93 verified open days

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

Projected to open Jun 2027 — closed September 27

Weather data is still collected for informational purposes.

Last Snowfall

Oct 31

Past 24 Hours

3cm

Resort reported

Past 48 Hours

7cm

Past 10 Days

14cm

7-Day Forecast

0cm

Snow Depth

--

🎿

Powder Days

36

2026 season

☀️

Bluebird Days

8

2026 season

Updated: Oct 30, 11:04 PM•Weather at base: 1,350m
SnowSure™ Score2026 season
33

Solid

2026 season average

Roundhill is projected to open June 2027. Last season it averaged 33.4 across 93 verified open days.

Best months to book: July, August, September. Best weeks: 4 Jul–10 Jul, 22 Aug–28 Aug, 11 Jul–17 Jul.Jun1Jul2Aug3SepOpened 27 JunClosed 27 Sep

Best months to book

  1. #1July60cm avg · last season 37.2
  2. #2August49cm avg · last season 31.4
  3. #3September44cm avg · last season 33

Best weeks to book

  1. #1 4 Jul – 10 Jul · last season 47.3
  2. #2 22 Aug – 28 Aug · last season 34.9
  3. #3 11 Jul – 17 Jul · last season 38.7

Ranked on 25% last season's SnowSure score (2026) · 75% 30-year snowfall and base-depth record. Last season's strongest fortnight was 3 Jul – 16 Jul. One season describes what happened, not what to expect. The live score returns when the lifts turn.

Snow Summary

Updated Oct 30 at 11:04 PM

249cm
Season
14cm
Past 10 days48H 7cm · 24H 3cm
0cm
Today
0cm
Next 6 days
Days 8–14 · Pro
1
1
5
Seasontotal
4
3
Thu29
Fri30
14 daystotal
—
—
0
—
—
—
—
—
—
—
—
—
—
—
WedOct 21
Thu22
Fri23
Sat24
Sun25
Mon26
Tue27
Wed28
TODAY31
SunNov 1
Mon2
Tue3
Wed4
Thu5
Fri6
Sat7
Sun8
Mon9
Tue10
Wed11
Thu12
Fri13
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 (1,742m) reached us: past snow shown is the model's estimate at the summit.

Hourly Forecast

31 Sat
3° / -12°
1 Sun
2° / -8°
2 Mon
6° / 0°
3 Tue
8° / 3°
4 Wed
8° / 3°
5 Thu
9° / 2°
6 Fri
10° / 5°
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight7 Sat8 Sun9 Mon10 Tue11 Wed12 Thu13 Fri
Conditions☀️☀️☀️🌤️☁️🌧️🌧️🌧️🌧️🌧️🌧️🌧️☁️☁️☁️☁️☁️🌧️☁️☁️🌧️
clearclearclearmostly clearcloudylight drizzlelight rainlight rainlight drizzlelight drizzledrizzlelight drizzlecloudycloudycloudycloudycloudylight drizzlecloudycloudydrizzle
Mid-mountain1,742 mModeled
Temp°C-3°5°-1°2°6°1°5°8°5°5°7°5°5°10°6°7°12°6°8°11°7°
Feels like°C-9°3°-6°-4°-1°-5°0°2°1°4°6°4°5°6°4°4°8°4°6°9°6°
Snowcm······0.1··············
Precipmm·····0.24.56.82.31.72.64.30.70.41.90.10.10.20.30.21.3
Windkm/h3641119111722116107121591117811168
Summit2,133 mModeled
Temp°C-6°2°-3°0°4°-2°2°6°3°3°5°2°3°7°3°4°9°4°5°9°5°
Feels like°C-11°0°-9°-7°-3°-8°-3°-1°-1°1°3°1°2°3°1°1°5°1°3°6°3°
Snowcm·····0.1··0.1··0.60.3·1.2······
Precipmm·····0.24.56.82.31.72.64.30.70.41.90.10.10.20.30.21.3
Windkm/h3641119111722116107121591117811168
Base1,350 mModeled
Temp°C-1°8°2°5°9°4°7°11°8°8°10°8°8°12°8°9°14°9°10°14°10°
Feels like°C-6°5°-3°-1°2°-2°3°6°5°7°10°7°8°10°7°8°11°7°9°12°10°
Snowcm·····················
Precipmm·····0.24.56.82.31.72.64.30.70.41.90.10.10.20.30.21.3
Windkm/h3641119111722116107121591117811168
Humidity%724479787590888586897992847488856888816784
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 Roundhill, 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 Roundhill (southern 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 →

Snowfall Forecast Maps

New Zealand region

14 Day map is in SnowSure ProUnlock with Pro

El Niño Outlook · Winter 2026

Roundhill El Niño rank & forecast

Roundhill ranks #383 of 488 SnowSure resorts — Tier E, −12% in strong El Niño winters.

Tier E — Deep timing play — aim late winter: Strong El Niño winters ran clearly below this resort’s own baseline (≤ −8%). Still skiable — schedule late season; one storm cycle can beat the climatology.

#383 of 488Tier E — Deep timing play — aim late winter

Strong-event signal: −12% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Roundhill averaged -12% versus its own 30-year snowfall baseline. Historically this is a timing play rather than a reason to stay home: aim for late winter (February–March) in winter 2026. Analog winters: '97-98 -28%, '15-16 -14%, '23-24 +7%. A pattern, not a promise.

'97-98 −28%'15-16 −14%'23-24 +7%

In-season scorecard

Predicted signal

−12%

Measured to date

+5%

Season total

249 cm

Vs predicted

+17%

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 Roundhill, ERA5 season snowfall median was 207 cm (81 in), about 14% 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

JJA 2026 · ANOM +1.8°C

Analog season median

207cm

5 El Niño winters · 14% below median

All-season median

241cm

Across 30 ERA5 seasons (2026)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent5207cm192cm – 222cm2023, 2015, 2009, 2002, 1997
La Niña4213cm195cm – 288cm2022, 2010, 1999, 1998
ENSO-neutral21259cm212cm – 295cm2025, 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 Roundhill

How much snow is Roundhill getting this week?
No significant snow is forecast at Roundhill over the next 7 days.
What is the 14-day snow forecast for Roundhill?
The full 14-day forecast for Roundhill — 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 Roundhill?
We verify every forecast against what actually fell and publish the results — see our forecast verification pages for model-by-model accuracy, updated continuously.