Weather: Rain on the way for much of NZ

A fine start to the week will turn into rain from tomorrow for much of New Zealand. Photo / Thinkstock

A fine start to the week will turn into rain from tomorrow for much of New Zealand, but it's a lot warmer than the frigid conditions of seven days ago.

Auckland may be hit by isolated showers today, but it's otherwise fine for most of the day as temperatures touch 15C.

MetService meteorologist Karl Loots said coastal areas of Northland, Gisborne and Hawke's Bay would also have the odd shower, while the interior of the North Island was fine.

Wellington will have a nice day with a moderate northerly and the outlook is good over most of the South Island, once patchy morning fog and high cloud clear.

"In the west we've just got a few showers this morning for Westland and Buller that turn into rain this morning."

Mr Loots said temperatures this week were well up on this time last week, with some highs in the mid teens.

Tomorrow a front arrives, reaching Fiordland in the morning. Western parts of the South Island would get rain but eastern parts would stay fine, with high cloud.

"For the North Island it's mostly fine but in the afternoon and in the evening we've going to see some rain developing in western places and patchy cloud and drizzle. For Auckland it might start off OK and it's going to become cloudy and drizzly as the day goes on."

The front moves up the South Island tomorrow night, bringing rain with it for Wednesday.