Mount Mawson 7-Day Snow Forecast

Mount Mawson Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 23 May 2026 05:46 AEST

Long-Range Snow Forecast for Mount Mawson

Long-range (14 to 45 days) from 22 May.

For Forecast detail, see below.

Mount Mawson Snow Forecast Highlights

When will there be fresh snow in Mount Mawson?

Mount Mawson Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,285m)
Next Snow Expected	5 June
Next Snow Amount	3cm
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Mount Mawson

Snowfall

Snow Line

Max 9℃
Min -1℃

Snow unlikely

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Mount Mawson 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 Mount Mawson from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Fri 22	Cloudy.	Max 9℃ Min 0℃
Sat 23	Cloudy.	Max 9℃ Min -1℃
Sun 24	Cloudy.	Max 9℃ Min 2℃
Mon 25	Cloudy.	Max 9℃ Min 2℃
Tue 26	Light drizzle.	Max 6℃ Min 2℃
Wed 27	Drizzle.	Max 6℃ Min 4℃
Thu 28	Rain showers.	Max 6℃ Min 5℃

This Snow Forecast for Mount Mawson, Australia 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 Mount Mawson, on any given trail 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.

Mount Mawson Snow Forecast updated at 05:46 AEST, next update expected 11:00 AEST.

Ensemble forecast for Mount Mawson, Australia at 1,250m

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

Mount Mawson typically sees a snow depth ranging from 50 to 100 cm during the season, with reliable snowfall from June to September. For the latest snow conditions, check J2Ski for up-to-date information.

Off-Piste Safety in Mount Mawson

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