Another shot of polar air is coming for NZ, starting in the south on Friday and clearing the north by the end of Saturday, meaning Sunday will be cooler nationwide.

We break down the wind, rain and timing to make sense of it all.

Next week we may well go back into a milder phase, but that could be ahead of a large low moving into NZ one week from now with severe weather risks – too far out to lock in, but we show you the map.