UPDATED 9.42AM: A low over Bay of Plenty and Waikato is forecast to weaken and move southwards, bringing rain to parts of the North Island.

Auckland, Coromandel Peninsula, Waikato and Bay of Plenty will see some heavy and possibly thundery falls, says the MetService.

In contrast, further heavy rain looks less likely to affect Gisborne, Hawkes Bay and Wairarapa, and the Watch for those areas is now lifted.

A watch is in place for the likelihood of heavy rain meeting warning criteria in the following areas...

AUCKLAND and COROMANDEL PENINSULA:

Although rain may ease for a time this morning, further localised heavy falls are possible, especially with any thunderstorms that form this afternoon. Rain should ease this evening.

WAIKATO, BAY OF PLENTY and ROTORUA:

Localised heavy rain is possible, especially with any thunderstorms that form this afternoon. Rain should ease this evening.

EARLIER:

It's the same old tune, but a different day, as another severe weather watch is issued for the Bay of Plenty.

The new watch is similar to the one from the weekend where heavy rain is expected to fall in the region today.

A watch is also in place for Auckland, Coromandel, Bay of Plenty and Rotorua, Gisborne, Hawke's Bay and Wairarapa.

The MetService is predicting bursts of heavy rain through the majority of today.

'A complex area of low pressure northeast of the North Island is moving southwestwards, bringing rain to parts of the North Island stretching from Auckland to East Cape and Wairarapa during Wednesday.

'There is still some uncertainty as to the depth and track of the low, but it now looks possible that Auckland, Coromandel Peninsula and Bay of Plenty will see some heavy and possibly thundery falls, and these areas have been added to this watch,” says a statement from the weather organisation.

This watch is for the likelihood of heavy rain meeting warning criteria in the following areas...

AUCKLAND, especially the Hunua Range and southern parts, and COROMANDEL PENINSULA: till Wednesday afternoon.

BAY OF PLENTY and ROTORUA: Wednesday morning.

GISBORNE: from late this evening till Wednesday morning.

HAWKES BAY: Wednesday morning.

WAIRARAPA: late Wednesday morning and early afternoon.

People are advised to stay up to date with the latest forecasts and warnings.

This Watch will be reviewed by 10am.