South Island, New Zealand

weather GRAPH

Detailed Forecast

Friday 20 July


Synoptic Outlook:

NW winds will pick up today, before a vigorous front works it’s way over the South Island during Saturday with plenty of snow making it over the Main Divide to fall on ski fields, but it will be rather wet on lower slopes. The front continues up the North Island in the early hours of Sunday with rain falling on Ruapehu, but a colder W-SW flow will follow close behind and we’ll have snow showers across the country. A southerly change moves up the South Island during Monday, pushing in more snow as a ridge digs in to the south.


Image Of The Day:


A bit breezy and a bit of cloud, but otherwise it’ll be worth a dabble up the hill today before the onslaught of the weekend. A front will work it’s way up the country Saturday and early Sunday with heavy rain falling initially, followed up by snow showers in a cold SW flow. Source:: Metservice (vandilised by the Grasshopper)


Friday 20 July:

A fine start over the South Island, but high cloud will move in overhead this morning. Plenty of blue sky over Ruapehu, with a bit of cloud around and there’ll be a snow flurry or two this afternoon. NW winds, becoming strong on the South Island.


Saturday 21 July:

Not a pleasant day for South Island fields. Rain will set in during the morning, which will fall as snow on upper slopes, along with severe gale NW winds. There’ll be heavy falls afternoon and evening while snow gradually lowers to base levels. For Ruapehu, cloud will build then there’ll be a few spits of rain from afternoon, falling as snow on upper slopes. NW winds will gradually rise to severe gale by the end of the day.


Sunday 22 July:

Snow showers morning and evening on South Island ski fields, with plenty of blue sky in the afternoon. Snow also falling on Ruapehu, with heavy falls early morning but it will be rain or sleet on lower slopes. Strong W-SW winds gradually easing, but there’ll be severe gale NW winds on Ruapehu before dawn.


Monday 23 July:

Snow showers will gradually ease over the country. A brisk southerly over the South Island, while strong westerlies on Ruapehu gradually ease.


Extended Outlook:

A low may spin up just east of NZ on Tuesday, while a southerly flow spreads over the North Island and a ridge builds over the South Island. The next frontal system should sweep over the country on Thursday, leaving a light to moderate amount of fresh powder and a cold SW flow, which might continue through next weekend as another low spins up just east of the country. A ridge may build on next Monday to provide nicer conditions to frolic in the fresh powder.


That’s all from the Grasshopper. Wanna keep your finger on the pulse of all things snow? Join my weekly email list by filling in the box below. If you have a question or feedback for me, hit me up on facebook.


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