Wet weather to slowly improve

File photo / NZ Herald

Holiday makers and children home for the school break might have to dodge showers this week, but there should be no repeat of last week's bruising storm in the lead up to Anzac Day.

After a weekend that saw many Auckland residents left without hot water and Westland homes without power, the week ahead promises to be a lot calmer.

MetService predicts improving conditions across the country tomorrow before isolated areas of wet weather over a few days.

Duty meteorologist Nicole Ranger said it was too early to say what to expect on Anzac Day on Friday, but the top half of the North Island could be in for a few showers.

The bottom half of the island could also expect rain or showers with a southerly change.

In the South Island, the east can expect a fine day with high cloud, while rain will ease in the west.

A warm flow over New Zealand on Thursday should mean it won't be too cold on Friday, Ms Ranger said.

The tail of ex-cyclone Ita made for a stormy Easter weekend for most, with high winds bringing down trees and powerlines.

Pockets of west Auckland and the North Shore have been without hot water for four days after power lines were brought down on Thursday, when ex-cyclone Ita hit the city, causing extensive flooding on Tamaki Drive.

Some hot water pilots - which supply electricity to hot water cylinders, independently of the main power supply - were not reconnected, even after power was restored.

Vector spokeswoman Sandy Hodge said crews were making good progress in reconnecting affected pilots, and were working in Ranui, Te Atatu South and Bayswater. They would then move on to Huapai, Glendene, Campbells Bay and Narrow Neck, Ms Hodge said.

In Westland, 300 residents were still without power last night [SAT].

For affected residents south of Fox Glacier, it could be a couple of days at least until their power is restored, Westpower chief executive Rob Caldwell said.

Power was restored in the Franz Joseph Glacier CBD last night and efforts continued today in Whataroa, Greymouth and Fox Glacier.

Meanwhile, Federates Farmers is advising farmers in affected areas to ask for help if needed.