Roundhill 7-Day Snow Forecast

Roundhill Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 22 May 2026 19:46 CDT

Long-Range Snow Forecast for Roundhill

Long-range (14 to 45 days) from 23 May.

For Forecast detail, see below.

Roundhill Snow Forecast Highlights

When will there be fresh snow in Roundhill?

Roundhill Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,742m)
Next Snow Expected	6 June
Next Snow Amount	1cm
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Roundhill

Snowfall

Snow Line

Max 10℃
Min 0℃

Snow unlikely

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Roundhill Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Roundhill from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 23	Clear sky.	Max 9℃ Min 5℃
Sun 24	Fair at altitude, clear sky below.	Max 10℃ Min 1℃
Mon 25	Cloudy at altitude, clear spells below.	Max 9℃ Min 1℃
Tue 26	Cloudy.	Max 6℃ Min 2℃
Wed 27	Clear spells.	Max 9℃ Min 1℃
Thu 28	Clear sky at altitude, fair below.	Max 9℃ Min 2℃
Fri 29	Cloudy.	Max 8℃ Min 0℃

This Snow Forecast for Roundhill, New Zealand gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Roundhill, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Roundhill Snow Forecast updated at 19:46 CDT, next update expected imminently.

Ensemble forecast for Roundhill, New Zealand at 1,350m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Reliability

Roundhill enjoys reliable snow conditions, with typical snow depths ranging from 1 to 2 meters. Snowfall is consistent throughout the season, but it's advisable to check the latest snow information on J2Ski for up-to-date details.

Off-Piste Safety in Roundhill

Before skiing or snowboarding off-piste in Roundhill, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.