Umbrellas should be at the ready as people head back to work after the weekend, with rain expected throughout the week.
"It's not looking like a great week," MetService meteorologist Cam Coutts said.
"We're looking at rain today - it should be a bit brighter in the afternoon but there could be some heavy rain around, then there's even more rain on Tuesday and Wednesday. There could be some heavy stuff around on Wednesday. It eases away on Thursday.
"So, it's looking to remain unsettled."
Temperatures would hover around 20c for the week, with overnight minimums around 13c or 14c.