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VIDEO: Antarctic blast heading for NZ for final days of September

A significant Antarctic blast is heading towards New Zealand as a low rapidly deepens this weekend. Air pressure will go from 980hPa on Saturday to 937hPa on Monday.

The storm will dredge up a southerly from Antarctica that, at this stage anyway, looks likely to bring a very cold Monday to Southland, Otago and the West Coast. 

Gales may spread nationwide as well.

We have the latest details – and we’ll have more information in our Friday update also.

Please visit for hourly data for Monday in your local part of NZ.


janet yarnell on 24/09/2020 7:45am

wind temperature what about rain we live upper hutt is rain heavy as weather pic doesnt show any rain only wind wellington please would love to know as weather maps i really interested in thanks

WW Forecast Team on 24/09/2020 8:29pm

Hi Janet, please visit – it has all the detailed rain graphs and wind graphs for your local part of NZ 🙂
Cheers – WW

Bart on 24/09/2020 1:23am

Having noted that temps are up to 10c above average now, can you tell us how much below normal they might be Monday?

WW Forecast Team on 24/09/2020 8:31pm

Hi Bart, in Southland it looks as though it will be over 8 degrees BELOW normal on Monday. Other parts of NZ will be average in the north and east, or down by a couple to several degrees. We’ll have maps over the weekend showing the departure from normal temperatures for Monday (IBM only gives us a couple days at a time to display). In the meantime, check out for local wind chills coming up.
Phil D

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