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snowy resort
Ski New Zealand

Mount Roon Snow History

43.48° S 170.17° E

Weather Forecast for Mount Roon at 1696m altitude

Next snow in Mount Roon:
1.9cm on Fri 18th
Issued:
5 pm 18 Sep 2026 (local time)
Forecast update in:
 hr  min

Is Mount Roon snowsure?

The snowiest week in Mount Roon is week 2 of September. There are typically 4.3 snowy days during this week with 64cm of snowfall. Check out the Mount Roon Snow History graphs below. Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.

Average monthly snow in Mount Roon

MonthSnow amount (week)Snow days (week)
June30cm2.5 days
July56cm3.2 days
August46cm3.5 days
September58cm3.8 days

Average Snow and Weather Conditions in Mount Roon during September (week 3):

The average snowfall forecast during week 3 of September for Mount Roon is 59 cm. There are typically 3.9 snowy days during this week. Mount Roon expected weather and snow conditions during the third week of September at the middle elevation of the heli-ski area at 1696m, based on historical averages over the last 11 years: At this time of year the average freezing level (1629m) is very near the middle elevation of Mount Roon. Regular fresh snowfalls are the norm in Mount Roon in the middle of September. On average, expect four days with snowfall per week but a rainy day during this week occurs about one year in two. Forecast model average snowfall for the week is 59cm. Daytime temperatures at the middle elevation in Mount Roon during week three of September usually get above freezing (average maximum is 0.0°C) but nightime temperatures typically fall to -1.0°C degrees so expect freeze-thaw cycles. On average, two days out of seven will have some sunshine. Mainly light winds (average 17km/h) but the historical norm is for the mean wind to reach 30km/h one day in this week. Calm, sunny and below freezing perfect weather days that follow fresh snow (bluebird powder days) happen on average one day during this week while powder days that don't have cold, sunny and calm conditions also happen on average one day every second year during this week every year.


Snow History: Compare Resorts


Compare Mount Roon with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Mount Roon and (2015 – 2026).

Winter
Summer

Mount Roon


Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Mount Roon and (2015 – 2026)

Winter
Summer

Bluebird Powder Day
(Fresh snow, mostly sunny, light wind)
Powder Day
(Fresh snow, limited sun, any wind)
Bluebird Day
(Average snow, mostly sunny, light wind)
Very windy days
(>30km/h)

The most cherished days on the mountain in Mount Roon are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.


Average Snowfall in

Graph showing the average precipitation (snow/rain) in Mount Roon and (2015 – 2026)

Winter
Summer

Snowfall amount
(bar chart)
Days with significant snowfall.
(>5cm)
Days with significant rainfall.
(>5mm)

The snowiest weeks of the year in Mount Roon are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.


Average Temperature in

Graph showing the average temperature and freezing level at Mount Roon and (2015 – 2026)

Winter
Summer

Average temperature
Maximum
Minimum
Temperatures
Above freezing
Below freezing
Freezing level
Dashed line

The highest and lowest temperatures averaged for each week of the year in Mount Roon are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.