Porter Heights 7-Day Snow Forecast

Porter Heights Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

PROSubscribe to Switch Weather Model

Updated 12 August 2026 01:46 BST

Long-Range Snow Forecast for Porter Heights

Long-range (14 to 45 days) from 12 August.

For Forecast detail, see below.

Porter Heights Snow Forecast Highlights

When will there be fresh snow in Porter Heights?

Porter Heights Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,640m)
Next Snow Expected	15 August
Next Snow Amount	8cm 3in
Next 48 Hours	- -
Next 7 Days	8cm 3in

Long-range Snow Outlook for Porter Heights

Snowfall

Snow Line

Max 10℃ 49°F
Min -6℃ 22°F

10cm 4in New Snow

Snow falling to resort level ( 1,300m 4,265ft ).

Porter Heights 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 Porter Heights from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Wed 12	Clear spells.	Max 5℃ 41°F Min 3℃ 37°F
Thu 13	Clear spells.	Max 10℃ 49°F Min 1℃ 33°F
Fri 14	Clear sky at altitude, fair below.	Max 7℃ 44°F Min -3℃ 26°F
Sat 15	4cm to 9cm 2in to 4in New Snow Light snow. Snow falling to resort level ( 1,300m 4,265ft ).	Max 0℃ 32°F Min -4℃ 26°F
Sun 16	Clear sky.	Max 2℃ 36°F Min -6℃ 22°F
Mon 17	Fair.	Max 1℃ 34°F Min -5℃ 22°F
Tue 18	Fair.	Max 4℃ 39°F Min -5℃ 23°F

This Snow Forecast for Porter Heights, 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 Porter Heights, 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.

Porter Heights Snow Forecast updated at 01:46 BST, next update expected 07:00 BST.

Ensemble forecast for Porter Heights, New Zealand at 1,300m

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

Porter Heights typically enjoys reliable snow conditions, with an average snowfall of 3 meters annually. Snow depths can reach up to 2 meters during peak season, so check J2Ski for the latest snow information.

Off-Piste Safety in Porter Heights

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