Some South Island skifields are already blanketed in a thick coat of snow a month away from opening day.

Wild weather has lashed the country over the weekend, with 200 trapped by flooding in Rotorua and the approach to a bridge near Geraldine washed out.

The Remarkables skifield near Queenstown received about 30 centimetres of snow in the past two days.

REMARKABLES SKI FIELD Early season snow has fallen on The Remarkables skifield, weeks out from opening.

Manager Ross Lawrence said the field had snow "down to the 8 kilometre mark on the road" from the slow moving easterly.

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The early snow was giving staff a good idea of how new facilities like a new learner slope would stack up when the field opened for the season in early June, he said.

REMARKABLES SKI FIELD About 30cm of snow fell at the field over the weekend.

Further north in Canterbury, the snow was not as heavy but some skifields still got a dusting.

Mt Hutt ski area manager James McKenzie said the field "didn't get much at all".

He said he thought about 10cm had fallen at the summit of the mountain, but staff had not been to the top yet so he did not know the exact amount.

It was "quite good" not to get too much yet as staff still had a lot of pre-season operations to do, McKenzie said.

MetService Meteorologist Melissa Oosterwijk said most of the snow had fallen on Saturday, with the heaviest falls around Queenstown down to about 700 metres.

She expected the rain to ease off from Sunday night, and most of it would not fall as snow.

"It's not unheard of to get snow at this time. You don't get it very often but it does happen since we're coming into winter now."