A large anticyclone to the southwest directs a cold southerly airflow over the South Island today, this southerly airflow gradually pushes over the North Island.
Northland, Auckland, Waikato & Bay Of Plenty
A mix of sun and cloud, chance of a shower or two otherwise mainly dry. Southerly quarter winds.
Western North Island (including Central North Island)
A dry morning then showers develop around midday as southeasterly winds freshen. Drying out overnight. Taranaki stays mainly dry, perhaps the chance of a shower in the afternoon. Strong southeasterly winds about the Taranaki coastline from afternoon.
Eastern North Island
Showers about Wairarapa, risk of a shower at times further north otherwise mainly dry. Showers becoming heavy about Wairarapa in the afternoon then further north later in the evening. Southerly winds freshen.
Showers develop in the morning, easing overnight. Southerly winds strengthen rising to gale through Cook Strait by midday.
Marlborough & Nelson
Mostly cloudy, may be a shower. Some sun may break through from afternoon, cloud more likely to break away later in the day. Fresh southeasterly winds, strong to gale southeast winds about the Sounds.
Showers, possibly heavy in the morning with small hail then easing from afternoon. Some snow to 500m. Fresh south to southwesterly winds.
Cloudy areas and a few showers, dry spells increasing from afternoon then cloud breaking away in the evening. Breezy southeasterly winds.
Southland & Otago
Cloudy areas with the risk of a shower at times till evening then cloud breaking away (highest risk of showers about coastal Otago), mainly dry otherwise. Cool southerly winds.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz