A slow-moving trough may move onto the north of the North Island during Monday and remain during Tuesday says a MetService spokesperson.

"There is low confidence that a rainfall warning will be needed for Northland, parts of Auckland and the Coromandel Peninsula during Monday and Tuesday."

A low could develop on the trough east of Gisborne on Wednesday and there is low confidence that warning amounts of rain will fall in Gisborne during Wednesday.

Another front is expected to move onto the South Island during Wednesday and this is followed by a strong southwest flow.

"There is low confidence that warning amounts of rain will fall in Fiordland on Wednesday and Thursday. On Thursday, there is low confidence that severe gale southwesterlies will affect Stewart Island and parts of the Southland and Otago coasts."