Wednesday is Waitangi Day and the forecast will be colder and cloudier for a number of main regions and about half of the country from the south right up the eastern coastline to about northern Hawke’s Bay.

These southern and eastern facing regions in both islands look much cooler with some several degrees below average.

Waitangi itself looks hot – as does much of the upper North Island where the colder change won’t reach.

Beyond that all eyes are on the tropics as low after lows starts to form there.

We also take a special look at the 14 day rainfall accumulation map – in other words, how much rain is coming to NZ and Australia and where will the highest chances for rain be and the lowest chances.