"Those southerlies really make themselves felt on Monday and again on Tuesday."
While Monday through to Wednesday would be mostly fine with some cloud, the region could also expect periodic showers over the next week, possibly developing into heavy rainfall by Thursday, he said.
"[It's] pretty dry until we get to Thursday when there's a chance of heavy rain.
"The Bay might see a few showers spread off the ranges.
"There may also be a few thunderstorms in localised areas."
This rain is expected to carry over through to Saturday.
He said the weekend had seen some "reasonable rainfall", the heaviest of which was 6mm falling within an hour near Napier.
"The rain has been very showery. I certainly wouldn't say everyone got it."