State Highway 25 in Coromandel has reopened after slips forced an overnight closure during severe weather.

The road was the last remaining road closure on the peninsula after this week’s deluge, and was closed from Coromandel to Matarangi Rd, Kūaotunu.

A powerful weather system that swept down the country this week delivered heavy rainfall totals, with some areas recording more than a month’s rain in a couple of days.

The highest totals were recorded in the Coromandel Ranges, where Castle Rock received 412mm of rain between Wednesday and Friday, while the Pinnacles recorded 347mm.

A MetService spokesperson said Saturday would provide a chance for affected regions to “take a breath” and assess damage, but another band of rain is expected to move over the country from late Sunday into Monday.

“The next system is not expected to be as severe and will be more short-lived, though it will bring a shift to cooler, more southerly conditions.”

MetService forecaster Gerard Bellam said the heaviest rain this week fell in elevated northern areas, as expected, before the system tracked south, affecting much of the country.

New Zealand Transport Agency Waka Kotahi (NZTA) has warned motorists that crews will be out working to clean up more slips in the Coromandel this weekend.

Debris has clogged the roadside at SH25 near Wades Rd, south of Whitianga. Photo / NZTA

“There are multiple slip sites requiring further work at Kūaotunu, Pumpkin Hill north of Tairua, and Opoutere.

“Further clean-up work will continue near Wade Rd south of Whitianga over the weekend.”

Looking south, parts of the Tasman ranges were hit by significant falls, with one location recording 319mm.

At lower elevations, where flooding impacts were more visible, Northland had particularly intense rainfall compared with monthly averages.

Kaitāia recorded 231mm over two days – more than double its typical March total of 96mm.

Kerikeri received 226mm, compared with a monthly average of 137mm, while Whangārei recorded 121mm, slightly above its usual March rainfall.

Tauranga, which experienced visible flooding, was doused with 147mm of rain, well above its monthly average of 98mm.