A westerly airflow lies over New Zealand today with various troughs pushing in from the Tasman Sea, therefore we have plenty of wet weather in the west, drier in the east. A vigorous front pushes in from the west overnight.
Northland, Auckland, Waikato & Bay Of Plenty
Showers, rain moves through late afternoon Auckland southwards then eases as northwesterlies change westerly.
Western North Island (including Central North Island)
Rain, more persistent for a time in the afternoon with a chance of heavy falls and thunderstorms, easing evening. Gusty north to northwesterly winds.
Eastern North Island
High cloud, some rain spreads from the west into Wairarapa during the afternoon, clearing evening. North to northwesterly winds.
Rain, more persistent for a time in the afternoon, easing in the evening. Strong to gale northwesterly winds, strongest after midday.
Marlborough & Nelson
Rain, more persistent for a time around midday as a front moves through then easing back, clearing evening. Gusty northwesterly winds, strong to gale about the Sounds.
Morning widespread rain in the high country, high cloud elsewhere then breaking to afternoon sun, gusty northerly winds (more so for Nth Canterbury). A brief southwesterly flick up the coast in the afternoon could bring a shower or two. Overnight heavy rain moves back into the high country with some rain spreading eastwards.
Rain with heavy falls and possible thunderstorms, easing from afternoon as northerlies tend westerly. At night northerlies strengthen again with further heavy falls, thunderstorms and hail.
Southland & Otago
Morning spits or showers clear then expect sunny spells, spots of rain again overnight. Light north to northwesterly winds, afternoon southwesterlies for a time about coastal Otago.