The official start to the ski season is still five weeks away, but resorts in New South Wales and Victoria are reporting perfect conditions after significant snow falls this weekend.

The cold snap that brought lower-than-average temperatures and strong winds to south-east Australia, damaging trees and buildings, provided unforeseen joy to the Snowy Mountains.

Another 16 centimetres of snow was recorded at Perisher in NSW in the 24 hours to Sunday morning, bringing its weekend total to 65cm.

The nearby Thredbo resort received another 5cm of snow for a two-day tally of 55cm.

Similar falls were reported in the Victorian resorts of Mt Hotham, Mt Buller, Falls Creek and Lake Mountain.

While coronavirus restrictions have put a curb on recreational activities, tourism groups are hopeful that restrictions will be eased in time for the traditional start of the season on the Queen's Birthday — June 8.

The coldest recorded temperature this morning was -4 degrees Celsius at Mt Hotham, almost 4C below average.

Canberra was the chilliest capital city with a low of 0.4C, 3.5C below its normal May reading.

But elsewhere, Sunday saw milder conditions across Australia in contrast to 24 hours earlier when even some Queensland towns reported sub-zero temperatures.

The Bureau of Meteorology (BOM) said a complex low-pressure system bringing frigid conditions to the south-east moved out into the Tasman Sea overnight.

But after a warmer few days, another low from Western Australia will head east and could mean a return to colder-than-average temperatures from Thursday onwards.

Strong winds in Victoria saw the State Emergency Service (SES) receive more than 700 calls for help over the past four days, with a particularly busy Saturday.

Fallen trees and building damage were reported in the Dandenong Ranges and Mornington Peninsula yesterday.

"We've had two events going in Victoria for the SES, which is some riverine flooding up in the north-east and the severe wind along the coastal areas and also in the Alpine areas," SES Duty Officer Laura Dewildt said, adding that more stable conditions had improved the situation.

Winds of up to 100 kilometres per hour threatened parts of Tasmania yesterday, but the SES recorded only two callouts for minor incidents.

Tasmania's Central Highlands experienced a wintry blast of snow last night, according to the BOM.

With the low pressure system moving away, Melbourne's forecast is for possible showers today and tomorrow, with a top temperature of 15C and winds easing this afternoon.

After a cold couple of days, Sydney has returned to seasonal weather, with a 20C maximum forecast for today and tomorrow.

Adelaide, which had its coldest April day in 12 years last Thursday, is also warming up, with a top temperature of 17C today, and 20C forecast for tomorrow.

Brisbane can expect high temperatures in the mid-20s for the rest of this week after dropping to an unseasonably cool low of 10.4C on Saturday morning.