Summer is expected to resume for much of Otago today and temperatures should be in the mid-20s by the end of the week.
However, rain is forecast for much of the region next week.
North Otago was expected to take the brunt of the storm for the region, but little damage eventuated.
However, due to the heavy rain, the Waitaki District Council yesterday issued a notice to conserve water in the Hampden-Moeraki, Herbert-Waianakarua and the Lower Waitaki rural supplies, which would remain in place until Tuesday.
More than 50mm fell in Oamaru yesterday and MetService reported sea swells of nearly 5m in the afternoon.
Waitaki District Council roading manager Michael Voss said no damage had been reported on district roads, but by 4pm 23 roads were closed due to flooding. A further seven roads in the district were under caution with surface flooding.
NZ Transport Agency issued advisories before noon that State Highway 83, from Duntroon to Pukeuri, and SH1, from Pukeuri to north Oamaru, were affected by surface flooding.
A Fire Emergency New Zealand spokesman said the Oamaru Volunteer Fire Brigade was called out to two leaking roofs yesterday.
Further south, SH90 between Tapanui and Waikoikoi was closed because of flooding from the Pomahaka River.
The Crown Range road between Queenstown and Wanaka was also closed yesterday afternoon. There was concern about the ''extreme danger'' of rockfalls, caused by heavy rain, on the Queenstown side.
A Queenstown Lakes District Council spokesman said the road was likely to remain closed overnight to allow a thorough geotechnical inspection to be carried out.
Queenstown's skifields received highly unseasonal snowfalls.
The Remarkables' manager Ross Lawrence said an average of 50cm had fallen on the ski area since Tuesday, with drifts over a metre in some places.
Coronet Peak had up to 15cm of snow at its base.
Although rain was very heavy at times in Dunedin yesterday, it did not compare with the 109.6mm of rain that fell on February 1, causing flooding across South Dunedin.
Dunedin City Council infrastructure and networks acting general manager Leanne Mash said the rain caused few issues.
The stormwater system coped well and there was minimal surface flooding in Mosgiel and South Dunedin.
There was a minor slip on the Otago Peninsula, past Portobello, but it was cleared and did not affect traffic.
Some fords on the Taieri were closed as a safety precaution.
Warrington domain remained closed to freedom campers yesterday, but the council's other freedom camping site at the Ocean View Recreation Reserve was available.
