We have three surges of colder weather coming for NZ. The first is today, the second is Friday and the third is next Monday.

We take a look at the forecast right up until Christmas Eve as we track airflows, rainclouds and temperatures.

At this stage high pressure will be growing around the middle of next week but Christmas Day itself does show two things in the early forecasts: Colder than normal for many in the east and showers most likely in the east too.